Assertion: coffee's caffeine | /r/HasProperty | alkaloid
Facets:
Source sentences:
text: Coffee Bean Oil also contains a small amount of caffeine, an alkaloid with centrally stimulating effects, making it desirable for inclusion in energizing massage oils.1
text: Caffeine (1,3,7-trimethyl-xanthine) is the alkaloid most present in green and roasted coffee beans.
text: Though coffee is the basis for an endless array of beverages, its popularity is mainly attributed to its invigorating effect, which is produced by caffeine , an alkaloid present in coffee.