Assertion: comfrey | /r/HasProperty | cultivated since 400 bc
Facets:
value: as a healing herb
type: PURPOSE
Source sentences:
text: Comfrey has been cultivated, at least, since 400 BC as a healing herb.
text: Comfrey has been cultivated since about 400 BC as a healing herb.
text: — Comfrey has been cultivated, at least, since 400 BC as a healing herb.