| NorthernHemisphere(northern hemisphere)
| | northern_hemisphere |
| appearance as argument number 1 |
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| (documentation NorthernHemisphere EnglishLanguage "The half of the Earth that lies above the equator.") | Geography.kif 3473-3474 | |
| (externalImage NorthernHemisphere "http://upload.wikimedia.org/wikipedia/ commons/ e/ e4/ Northern_Hemisphere_LamAz.png") | pictureList.kif 1871-1871 | |
| (instance NorthernHemisphere Hemisphere) | Geography.kif 3472-3472 | Northern hemisphere is an instance of hemisphere |
| appearance as argument number 2 |
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| consequent |
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| (<=> (instance ?HEMISPHERE Hemisphere) (or (equal ?HEMISPHERE NorthernHemisphere) (equal ?HEMISPHERE SouthernHemisphere) (equal ?HEMISPHERE EasternHemisphere) (equal ?HEMISPHERE WesternHemisphere))) |
Geography.kif 3488-3494 | An entity is an instance of hemisphere if and only if the entity is equal to northern hemisphere or the entity is equal to southern hemisphere or the entity is equal to eastern hemisphere or the entity is equal to western hemisphere |
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