Assertion: opium's codeine | /r/HasProperty | extracted
Facets:
value: from opium
type: OTHER
value: directly
type: MANNER
Source sentences:
text: 1832 Codeine is extracted from opium.
text: First isolated by French chemist Pierre-Jean Robiquet in 1832, codeine may be extracted directly from opium, but most codeine is produced from morphine, another opium derivative.
text: 1832 - codeine was extracted from opium.