Assertion: caffeine | /r/HasProperty | central nervous system
Facets:
value: in humans
type: OTHER
Source sentences:
text: Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class.
text: Caffeine is a central nervous system (CNS) stimulant, having the effect of temporarily warding off drowsiness and restoring alertness.
text: Caffeine is a central nervous system and metabolic stimulant, and is used both recreationally and medically to reduce physical fatigue and restore mental alertness when unusual weakness or drowsiness occurs.
text: Caffeine is a central nervous system (CNS) stimulant of the methylxanthine class.
text: In humans, caffeine is a central nervous system (CNS) stimulant, having the effect of temporarily warding off drowsiness and restoring alertness.