Assertion: black truffle | /r/CapableOf | elude attempt
Facets:
value: so far
type: TEMPORAL
value: at cultivation
type: LOCATION
Source sentences:
text: There is a thriving global trade for the two big stars—the Périgord black truffle, which is harvested in the wild and in plantations, and the Italian white truffle, Tuber magnatum, which has so far eluded all attempts at cultivation.