Assertion: swallow's nest | /r/HasProperty | harvested
Facets:
value: from caves
type: LOCATION
value: formerly
type: TEMPORAL
Source sentences:
text: The nests were formerly harvested from caves, principally the enormous limestone caves at Gomantong and Niah in Borneo.
text: The nests were formerly harvested from caves, principally the enormous limestone caves at Gomantong and Niah in Borneo.