Assertion: cetacean's population | /r/HasProperty | driven to extinction
Facets:
value: by commercial whaling
type: CAUSE
value: from the kumanonada sea off wakayama
type: LOCATION
Source sentences:
text: Japan blue whale population: Some researchers have informally suggested that a former population of blue whales off Japan were driven to extinction by commercial whaling, mostly from the Kumanonada Sea off Wakayama, in the Gulf of Tosa, and in the Sea of Hyūga.