Assertion: cigarette's nicotine | /r/HasProperty | occurring alkaloid
Facets:
value: naturally
type: MANNER
Source sentences:
text: Nicotine, a naturally occurring alkaloid, binds stereo-selectively to nicotinic-cholinergic receptors at the autonomic ganglia, in the adrenal medulla, at neuromuscular junctions, and in the brain.
text: Nicotine is a naturally occurring chemical found in tobacco leaves and is classified as a drug.1