Assertion: humpback whale's population | /r/HasProperty | depleted by commercial whaling
Facets:
Source sentences:
text: Humpback whales were plentiful in oceans worldwide before the global population was depleted by commercial whaling at the start of the 20th century.
text: Humpback whales were common in oceans worldwide before their population was depleted by commercial whaling.
text: Answer: Humpback whales were plentiful in oceans worldwide before the global population was depleted by commercial whaling at the start of the 20th century.