]> 2008/06/10 OpenCyc Knowledge Base Copyright© 2001-2008 Cycorp, Inc., http://www.cyc.com/, Austin, TX, USA This file contains an OWL representation of information contained in the OpenCyc Knowledge Base. The content of this OWL file is licensed under the Creative Commons Attribution 3.0 license whose text can be found at http://creativecommons.org/licenses/by/3.0/legalcode. The content of this OWL file, including the OpenCyc content it represents, constitutes the "Work" referred to in the Creative Commons license. The terms of this license equally apply to, without limitation, renamings and other logically equivalent reformulations of the content of this OWL file (or portions thereof) in any natural or formal language, as well as to derivations of this content or inclusion of it in other ontologies. externalID A unique, language-neutral, variable-sized identifier for a concept that can be used to refer unambiguously to that concept across OWL exports or across Cyc inference engines. label A natural-language representation for a concept that is both human readable and readable by the Cyc inference engine. These terms are not guaranteed to refer to the same concept across time but are guaranteed to be consistent within a particular OWL export. Use 'cycAnnot:externalID' for unambiguously referring to a concept across OWL exports or across Cyc inference engines. AnnualTemporalObjectType type of annual event A collection of collections. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a> is a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViAxJwpEbGdrcN5Y29ycA" class="cyc_term">TemporalThing</a>, instances of which occur once per year according to some calendar. Furthermore, the occurrence of instances of each such type of event is tied to a specific time (for example, a specific date) in the calendar year. For example, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirVJwpEbGdrcN5Y29ycA" class="cyc_term">ChristmasHoliday</a> is an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>, because one occurs on a specific date (namely, December 25) each year. types of annual event annual holiday type AnnualHolidayType A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rjIcu4Fs1QdedO5fWVPpbiQ" class="cyc_term">ConventionallyClassifiedTemporalObjectSeries</a>. An instance X-DAY of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rjD_E2Fs1QdeOqs6SH7xb8w" class="cyc_term">AnnualHolidayType</a> is itself a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a> (q.v.) such that each member of X-DAY is subsumed by one and only one calendar year. (CollectionUnionFn (TheSet DayOfYearType MonthOfYearType)) the union of { days of the year, months of the year } CalendarSeasonType A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rtlx2ElmbQdeeBJIvuYHGpQ" class="cyc_term">ConventionallyClassifiedTimeIntervalSeries_DisjointWithGaps</a> and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEUH5wpEbGdrcN5Y29ycA" class="cyc_term">CalendarSeasonType</a> is a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEU5pwpEbGdrcN5Y29ycA" class="cyc_term">CalendarSeason</a> -- <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEW85wpEbGdrcN5Y29ycA" class="cyc_term">CalendarWinter</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEXNZwpEbGdrcN5Y29ycA" class="cyc_term">CalendarSpring</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEXaJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarSummer</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEXkJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarAutumn</a>. season A <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rHQdVmB_TEdaAAABQ2rksLw" class="cyc_term">SecondOrderCollection</a> and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rmh5XJpn2QdiJ1f5oloUoKw" class="cyc_term">MovableHolidayType</a> is a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a> whose instances may occur on different dates in different years. Instances include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirFZwpEbGdrcN5Y29ycA" class="cyc_term">EasterHoliday</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVipfZwpEbGdrcN5Y29ycA" class="cyc_term">ThanksgivingHoliday_US</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViqTZwpEbGdrcN5Y29ycA" class="cyc_term">MLKHoliday</a>. movable holiday type MovableHolidayType A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>. An instance EVENT of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rcp36ERCuEdmaKgACs6hPlA" class="cyc_term">AnnualSportsEventType</a> is itself a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi__ZwpEbGdrcN5Y29ycA" class="cyc_term">SportsCompetition</a> (q.v.) such that one and only one member of EVENT happens per calendar year. annual sports event AnnualSportsEventType tet lunar new year Tet-LunarNewYear independence day azerbaijan IndependenceDay-Azerbaijan vernal equinox A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rPaIBHoUhEdaAAAACs0uFOQ" class="cyc_term">Equinox</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rQBn35IUhEdaAAAACs0uFOQ" class="cyc_term">VernalEquinox</a> is an event during which the sun is directly above the celestial equator. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rPaIBHoUhEdaAAAACs0uFOQ" class="cyc_term">Equinox</a> occurs annually about March 21, during an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVrqkJwpEbGdrcN5Y29ycA" class="cyc_term">VernalEquinoxDay</a> (q.v.). VernalEquinox Anniversary of the Revolution An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rjD_E2Fs1QdeOqs6SH7xb8w" class="cyc_term">AnnualHolidayType</a> and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rveWVs5wpEbGdrcN5Y29ycA" class="cyc_term">AnniversaryOfTheRevolution</a> falls on the seventeenth day of an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjBrZwpEbGdrcN5Y29ycA" class="cyc_term">July</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rveWVs5wpEbGdrcN5Y29ycA" class="cyc_term">AnniversaryOfTheRevolution</a> commemorates the day in (<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjympwpEbGdrcN5Y29ycA" class="cyc_term">YearFn</a> 1968) that the Arab Baath Socialist Party came to power in <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViGWpwpEbGdrcN5Y29ycA" class="cyc_term">Iraq</a>. AnniversaryOfTheRevolution Each of these is an annual one-day-long <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQBhnZwpEbGdrcN5Y29ycA" class="cyc_term">ChristianHoliday</a> which is celebrated on January 6 and which commemorates either the coming of the Magi (Western Christianity) or the Baptism of Christ (Greek Orthodox). Epiphany Epiphany-TheDay Lent Lent The collection of all periods of Lent, starting each year on <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvmiQn5wpEbGdrcN5Y29ycA" class="cyc_term">AshWednesday</a> and ending at midnight between Holy Saturday and Easter. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpW7d5wpEbGdrcN5Y29ycA" class="cyc_term">Lent</a> is 46 days long, i.e., 40 days not counting the six <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjWN5wpEbGdrcN5Y29ycA" class="cyc_term">Sunday</a>s. The first day of May is considered an holiday in many countries around the world. Since the 1890's it has been a celebration of the ideal of international peace and solidarity among workers in commemoration of the Haymarket "riots" in Chicago. It has been a spring holiday for centuries. The lily, symbolizing the overcoming of winter by spring, became the flower of the first of May. May Day MayDay A subset of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a>, instances of the collection <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvtJFMpwpEbGdrcN5Y29ycA" class="cyc_term">AprilFoolsDay</a> are characterized by the fact that, during them, people tell instances of the collection <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwB6f8pwpEbGdrcN5Y29ycA" class="cyc_term">AprilFoolsJoke</a>. AprilFoolsDay April Fool's Day The birthday of the current emperor. In 1995, the emperor was Akihito, and his birthday is Dec. 23. Birthday of the Emperor BirthdayOfTheEmperor-Japan IndependenceDay-Bahrain Bahrain Independence Day The Holiday commemorating Algeria's declaration of independence from France on July 5, 1962. IndependenceDay-Algeria independence day algeria Fourth of July IndependenceDay-US The <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a> commemorating the declaration of independence by the United States on July 4, 1776. Celebrated in the United States each July 4. NationalDay-UnitedArabEmirates national day united arab emirates Carnival-Catholic Carnival The collection of pre-<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvpW7d5wpEbGdrcN5Y29ycA" class="cyc_term">Lent</a> celebrations in Catholic countries, rooted in pre-Christian spring fertility rites. The holiday commemorating end of World War II [<font color="#ff0000">#$WorldWarII</font>] in Europe, 8 May 1945. VE Day V-EDay JuneSolstice June solstice A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rQ5N1JoUhEdaAAAACs0uFOQ" class="cyc_term">Solstice</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRgvZzoUhEdaAAAACs0uFOQ" class="cyc_term">JuneSolstice</a> is an annual event during which the the sun is directly above the furthest point north of the celestial equator that it reaches during any given year. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rRgvZzoUhEdaAAAACs0uFOQ" class="cyc_term">JuneSolstice</a> occurs annually about June 21, during some instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYPM8uFe8EdaQLQACs0uFOQ" class="cyc_term">JuneSolsticeDay</a> (q.v.) VernalEquinoxDay vernal equinox A collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjeCJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarDay</a>s and an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVrqkJwpEbGdrcN5Y29ycA" class="cyc_term">VernalEquinoxDay</a> is a calendar-day during which the sun crosses the equator, making daytime (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViHepwpEbGdrcN5Y29ycA" class="cyc_term">DaytimeHours</a>) and nighttime (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVieC5wpEbGdrcN5Y29ycA" class="cyc_term">Night</a>) of equal duration on all parts of the earth, but where daytimes are lengthening and nighttimes shortening in the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjPjpwpEbGdrcN5Y29ycA" class="cyc_term">NorthernHemisphere_Region</a>. A vernal equinox occurs about March 21 each year and marks the end of the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEW85wpEbGdrcN5Y29ycA" class="cyc_term">CalendarWinter</a> and beginning of the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEXNZwpEbGdrcN5Y29ycA" class="cyc_term">CalendarSpring</a> in the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjPjpwpEbGdrcN5Y29ycA" class="cyc_term">NorthernHemisphere_Region</a>, and the end of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEXaJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarSummer</a> and the beginning of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEXkJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarAutumn</a> in the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj5j5wpEbGdrcN5Y29ycA" class="cyc_term">SouthernHemisphere_Region</a>. tet south vietnam vietnam war era <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvchOuZwpEbGdrcN5Y29ycA" class="cyc_term">Tet_SouthVietnam_VietnamWarEra</a> is the collection of all instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvwZ79ZwpEbGdrcN5Y29ycA" class="cyc_term">Tet_LunarNewYear</a> celebrated in <font color="#ff0000">#$SouthVietnam</font> between approximately 1955 to 1975. Tet-SouthVietnam-VietnamWarEra autumnal equinox A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rPaIBHoUhEdaAAAACs0uFOQ" class="cyc_term">Equinox</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rQexstIUhEdaAAAACs0uFOQ" class="cyc_term">AutumnalEquinox</a> is an event during which the sun is directly above the celestial equator. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rQexstIUhEdaAAAACs0uFOQ" class="cyc_term">AutumnalEquinox</a> occurs annually about September 21, during an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWhvypwpEbGdrcN5Y29ycA" class="cyc_term">AutumnalEquinoxDay</a> (q.v.). AutumnalEquinox Each of these is a one-day-long annual <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a> celebrating the supernatural spirit world. Although derived from Pagan and Christian religious tradition, it is essentially a purely secular holiday as practiced in the United States of America. Halloween Halloween FeastOfTheAssumption feast of the assumption Each of these is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQBhnZwpEbGdrcN5Y29ycA" class="cyc_term">ChristianHoliday</a> which commemorates the ascension of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQBk5pwpEbGdrcN5Y29ycA" class="cyc_term">Mary_MotherOfJesus</a> into heaven after her death. PublishersClearingHouse-SweepstakesEvent Publishers Clearing House The <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwRAL1pwpEbGdrcN5Y29ycA" class="cyc_term">PublishersClearingHouse_SweepstakesEvent</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViAzJwpEbGdrcN5Y29ycA" class="cyc_term">Collection</a> of all the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvaBSgJwpEbGdrcN5Y29ycA" class="cyc_term">Sweepstakes_Event</a>s <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVipYpwpEbGdrcN5Y29ycA" class="cyc_term">performedBy</a> the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv4VD6ZwpEbGdrcN5Y29ycA" class="cyc_term">PublishersClearingHouse_Organization</a>. These <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwRAL1pwpEbGdrcN5Y29ycA" class="cyc_term">PublishersClearingHouse_SweepstakesEvent</a>s occur on an annual basis. An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwRAL1pwpEbGdrcN5Y29ycA" class="cyc_term">PublishersClearingHouse_SweepstakesEvent</a> would be the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvaBSgJwpEbGdrcN5Y29ycA" class="cyc_term">Sweepstakes_Event</a> performed by <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rv4VD6ZwpEbGdrcN5Y29ycA" class="cyc_term">PublishersClearingHouse_Organization</a> that occurred for a particular ?YEAR. A collection of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjeCJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarDay</a>s and an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWhvypwpEbGdrcN5Y29ycA" class="cyc_term">AutumnalEquinoxDay</a> is a calendar-day during which the sun crosses the equator from north to south, making daytime (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViHepwpEbGdrcN5Y29ycA" class="cyc_term">DaytimeHours</a>) and nighttime (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVieC5wpEbGdrcN5Y29ycA" class="cyc_term">Night</a>) of equal duration on all parts of the earth, but where daytimes are shortening and nighttimes lengthening in the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjPjpwpEbGdrcN5Y29ycA" class="cyc_term">NorthernHemisphere_Region</a>. An autumnal equinox marks the beginning of the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEXkJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarAutumn</a> in the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjPjpwpEbGdrcN5Y29ycA" class="cyc_term">NorthernHemisphere_Region</a> and the beginning of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgEXNZwpEbGdrcN5Y29ycA" class="cyc_term">CalendarSpring</a> in the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj5j5wpEbGdrcN5Y29ycA" class="cyc_term">SouthernHemisphere_Region</a>. Instances occur about September 22 of each year. AutumnalEquinoxDay autumnal equinox DecemberSolsticeDay A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjeCJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarDay</a> and an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYPM8uVe8EdaQLQACs0uFOQ" class="cyc_term">DecemberSolsticeDay</a> is a calendar day (usually December 21) which is either a summer solstice day (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVprG5wpEbGdrcN5Y29ycA" class="cyc_term">SummerSolsticeDay</a>) in the southern hemisphere or a winter solstice day (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvV3GDZwpEbGdrcN5Y29ycA" class="cyc_term">WinterSolsticeDay</a>) in the northern hemisphere. December solstice Hajj-Pilgrimage hajj-pilgrimage An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rX_BAMkq7EdiedwACs5b6-g" class="cyc_term">Hajj_Pilgrimage</a> is a traditional <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rX_BAMUq7EdiedwACs5b6-g" class="cyc_term">Pilgrimage</a> by <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwQB3sJwpEbGdrcN5Y29ycA" class="cyc_term">MuslimPerson</a>s to <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjb45wpEbGdrcN5Y29ycA" class="cyc_term">CityOfMeccaSaudiArabia</a>, culminating in special ceremonies during the 8th through 12th days of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r0idg4CyJEdaAAABQ2rksLw" class="cyc_term">DhuAlHijjah_IslamicMonth</a>. Note that this is the collective, overarching Hajj event: there is exactly one instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rX_BAMkq7EdiedwACs5b6-g" class="cyc_term">Hajj_Pilgrimage</a> each <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4r1JsoAiyJEdaAAABQ2rksLw" class="cyc_term">IslamicYear</a>. ConstitutionDay-Spain constitution day spain Valentine's Day ValentinesDay Each of these is an annual <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a> celebrating romance and love. Although derived from the celebration of the Christian Saint Valentine, it is essentially a purely secular holiday as practiced in the United States of America. December solstice A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rQ5N1JoUhEdaAAAACs0uFOQ" class="cyc_term">Solstice</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rR_ZizIUhEdaAAAACs0uFOQ" class="cyc_term">DecemberSolstice</a> is an annual event during which the the sun is directly above the furthest point south of the celestial equator that it reaches during any given year. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rR_ZizIUhEdaAAAACs0uFOQ" class="cyc_term">DecemberSolstice</a> occurs annually about December 21, during some instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYPM8uVe8EdaQLQACs0uFOQ" class="cyc_term">DecemberSolsticeDay</a> (q.v.). DecemberSolstice independence day greece IndependenceDay-Greece national day china NationalDay-China Islamic Republic Day An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rjD_E2Fs1QdeOqs6SH7xb8w" class="cyc_term">AnnualHolidayType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvv4lppwpEbGdrcN5Y29ycA" class="cyc_term">IslamicRepublicDay</a> is a <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a> falling on the first day of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjCeZwpEbGdrcN5Y29ycA" class="cyc_term">April</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvv4lppwpEbGdrcN5Y29ycA" class="cyc_term">IslamicRepublicDay</a> commemorates the founding, in (<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjympwpEbGdrcN5Y29ycA" class="cyc_term">YearFn</a> 1979), of the <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwfmx_m2oEdaAAACgyZzFrg" class="cyc_term">IslamicRepublic</a> of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVj11JwpEbGdrcN5Y29ycA" class="cyc_term">Iran</a>. IslamicRepublicDay Oktoberfest Oktoberfest-Holiday Each of these is an annual <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViptZwpEbGdrcN5Y29ycA" class="cyc_term">Holiday</a> celebrated for a period of about three weeks during the autumn. The tradition originated in Bavaria in 1810 to commemorate the wedding of Crown Prince Ludwig. Today, Oktoberfest is celebrated as a large festival with food, beer, and music. Some towns in the U.S. that were settled by people from Germany also have Oktoberfest celebrations. Tet-NorthVietnam-VietnamWarEra <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvngAJJwpEbGdrcN5Y29ycA" class="cyc_term">Tet_NorthVietnam_VietnamWarEra</a> is the collection of all instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvwZ79ZwpEbGdrcN5Y29ycA" class="cyc_term">Tet_LunarNewYear</a> celebrated in <font color="#ff0000">#$NorthVietnam</font> between approximately 1955 to 1975. tet north vietnam vietnam war era Unification of the Kingdom UnificationOfTheKingdom-SaudiArabia AustraliaDay An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rjD_E2Fs1QdeOqs6SH7xb8w" class="cyc_term">AnnualHolidayType</a> and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rT7KxAVAxEdifMgACs5b6-g" class="cyc_term">GregorianCalendarHoliday</a>. An instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvtyP6JwpEbGdrcN5Y29ycA" class="cyc_term">AustraliaDay</a> occurs on the 26th day of every instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVi4M5wpEbGdrcN5Y29ycA" class="cyc_term">January</a>. <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvtyP6JwpEbGdrcN5Y29ycA" class="cyc_term">AustraliaDay</a> commemorates the day in (<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjympwpEbGdrcN5Y29ycA" class="cyc_term">YearFn</a> 1788) when Captain Arthur Phillip became the first governor of the colony of New South Wales (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvWnTRJwpEbGdrcN5Y29ycA" class="cyc_term">NewSouthWales_StateAustralia</a>). Australia Day June solstice JuneSolsticeDay A specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjeCJwpEbGdrcN5Y29ycA" class="cyc_term">CalendarDay</a> and an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rYPM8uFe8EdaQLQACs0uFOQ" class="cyc_term">JuneSolsticeDay</a> is a calendar day (usually about June 21) which is either a summer solstice day (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVprG5wpEbGdrcN5Y29ycA" class="cyc_term">SummerSolsticeDay</a>) in the northern hemisphere or a winter solstice day (see <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvV3GDZwpEbGdrcN5Y29ycA" class="cyc_term">WinterSolsticeDay</a>) in the southern hemisphere. ReferendumDay-Armenia Referendum Day The collection of all specializations of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rHIBS0h_TEdaAAABQ2rksLw" class="cyc_term">FirstOrderCollection</a>, that is, of all collections of (first-order) collections, and an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rHUFI8h_TEdaAAABQ2rksLw" class="cyc_term">ThirdOrderCollection</a>. Instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rHQdVmB_TEdaAAABQ2rksLw" class="cyc_term">SecondOrderCollection</a> are collections of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rHIBS0h_TEdaAAABQ2rksLw" class="cyc_term">FirstOrderCollection</a>s. Any instance of any instance of any instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rHQdVmB_TEdaAAABQ2rksLw" class="cyc_term">SecondOrderCollection</a> is an <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjaApwpEbGdrcN5Y29ycA" class="cyc_term">Individual</a>. SecondOrderCollection second-order Cyc collection AnnualTemporalObjectType type of annual event A collection of collections. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a> is a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViAxJwpEbGdrcN5Y29ycA" class="cyc_term">TemporalThing</a>, instances of which occur once per year according to some calendar. Furthermore, the occurrence of instances of each such type of event is tied to a specific time (for example, a specific date) in the calendar year. For example, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirVJwpEbGdrcN5Y29ycA" class="cyc_term">ChristmasHoliday</a> is an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>, because one occurs on a specific date (namely, December 25) each year. AnnualTemporalObjectType type of annual event A collection of collections. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a> is a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViAxJwpEbGdrcN5Y29ycA" class="cyc_term">TemporalThing</a>, instances of which occur once per year according to some calendar. Furthermore, the occurrence of instances of each such type of event is tied to a specific time (for example, a specific date) in the calendar year. For example, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirVJwpEbGdrcN5Y29ycA" class="cyc_term">ChristmasHoliday</a> is an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvh7QtZwpEbGdrcN5Y29ycA" class="cyc_term">AnnualTemporalObjectType</a>, because one occurs on a specific date (namely, December 25) each year. repeated events time topic RepeatedEvents-Time-Topic Pretty String (<a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwLSVCpwpEbGdrcN5Y29ycA" class="cyc_term">prettyString</a> TERM STRING) means that STRING is the English word or expression (sequence of words) commonly used to refer to TERM. The predicate <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwLSVCpwpEbGdrcN5Y29ycA" class="cyc_term">prettyString</a> is used by the code which generates CycL to English paraphrases, but its applicability is not restricted to this use. prettyString calendar based event type CalendarBasedTemporalObjectType <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwVRUSZwpEbGdrcN5Y29ycA" class="cyc_term">CalendarBasedTemporalObjectType</a> s a collection of collections and a specialization of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvgETA5wpEbGdrcN5Y29ycA" class="cyc_term">TemporallyDisjointTemporalObjectType</a>. Each instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwVRUSZwpEbGdrcN5Y29ycA" class="cyc_term">CalendarBasedTemporalObjectType</a> is a collection of instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvViAxJwpEbGdrcN5Y29ycA" class="cyc_term">TemporalThing</a>. Each instance of an instance of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwVRUSZwpEbGdrcN5Y29ycA" class="cyc_term">CalendarBasedTemporalObjectType</a> is a temporal thing that is co-temporal with a specific time in a calendar year. The calendar references may be to any sort of calendar -- lunar, Gregorian, Julian, etc. Example instances of <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rwVRUSZwpEbGdrcN5Y29ycA" class="cyc_term">CalendarBasedTemporalObjectType</a> include <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVjA75wpEbGdrcN5Y29ycA" class="cyc_term">October</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvVirVJwpEbGdrcN5Y29ycA" class="cyc_term">ChristmasHoliday</a>, <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rPaIBHoUhEdaAAAACs0uFOQ" class="cyc_term">Equinox</a>, and <a href="http://sw.opencyc.org/2008/06/10/concept/Mx4rvX-Rh5wpEbGdrcN5Y29ycA" class="cyc_term">SuperBowlGame</a>.