Assertion: narcotic | /r/HasProperty | substance
Facets:
Source sentences:
text: Narcotics are substances and preparations that induce drowsiness, sleep, stupor, insensibility, etc., and that these effects (and their rate) are complicated to prove, e.g. during litigation.
text: According to the United States Drug Enforcement Administration, narcotics are substances that bind to pain receptors in the brain and block pain signals.