Assertion: opium | /r/HasProperty | purified into heroin
Facets:
value: at this time
type: TEMPORAL
value: during this time period
type: TEMPORAL
Source sentences:
text: At this time, opium was first being purified into morphine and heroin which were both highly potent and very powerful analgesic drugs that proved to be very much more dangerous that the raw opium itself.
text: At this time, opium was first being purified into morphine and heroin which were both highly potent and very powerful analgesic drugs that proved to be very much more dangerous than the raw opium itself.
text: During this time period, opium was being purified into morphine and heroin was also being created from the drug.