Assertion: cocaine's property | /r/HasProperty | known for many centuries
Facets:
Source sentences:
text: Although the stimulant and hunger-suppressant properties of coca had been known for many centuries, the isolation of the cocaine alkaloid was not achieved until 1855.
text: Although the stimulant and hunger-suppressant properties of coca had been known for many centuries, the isolation of the cocaine alkaloid was not achieved until 1855 .