Assertion: coffee's caffeine | /r/HasProperty | chemical
Facets:
Source sentences:
text: Caffeine is a chemical naturally found in several plant foods and drinks.
text: In decaf coffee, although caffeine is lower and phenolic acid content may be slightly lower, too, protective phytochemicals still add up.
text: This is what caffeine, the chemical, "looks" like.
text: Caffeine is a chemical drug derived from sources like the kola nut, coffee plant and tea bush, and works as a stimulant.