Assertion: kava's effect | /r/HasProperty | due
Facets:
value: to a single substance
type: CAUSE
value: to compound
type: CAUSE
Source sentences:
text: The calming effects of kava root drinks are due to a combination of the main active ingredients in the plant, (known as kavalactones), not to a single substance or compound.
text: These side effects are due to prolonged use of excessive use of Piper methysticum.