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Sigma KEE - CommonEra
CommonEra(common era)

appearance as argument number 1
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(instance CommonEra TimeInterval) Mid-level-ontology.kif 9214-9214 Common era is an instance of timeframe
(documentation CommonEra EnglishLanguage "The TimeInterval that runs from the supposed time of the death of Christ to PositiveInfinity.") Mid-level-ontology.kif 9215-9216 Common era is an instance of timeframe

appearance as argument number 2
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(termFormat EnglishLanguage CommonEra "common era") domainEnglishFormat.kif 15972-15972
(termFormat ChineseTraditionalLanguage CommonEra "共同時代") domainEnglishFormat.kif 15973-15973
(termFormat ChineseLanguage CommonEra "共同时代") domainEnglishFormat.kif 15974-15974

statement
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(not
    (overlapsTemporally CommonEra BeforeCommonEra))		 Mid-level-ontology.kif 9212-9212 Before common era doesn't overlap common era


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