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Term 1: Term 2:

s__instance(s__Substance,s__Class)

s__instance(s__Lubricant,s__Class)

s__subclass(s__Lubricant,s__Substance)

Cars.kif 2975-2975 Lubricant is a subclass of substance
s__instance(s__Lubricant,s__Class)

s__instance(s__Grease,s__Class)

s__subclass(s__Grease,s__Lubricant)

Cars.kif 2981-2981 Grease is a subclass of lubricant


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