Assertion: sperm whale | /r/HasProperty | hunted for blubber
Facets:
value: a practice that went
type: TEMPORAL
value: during the 19th and 20th centuries
type: TEMPORAL
value: relentlessly
type: DEGREE
Source sentences:
text: During the 19th and 20th centuries, sperm whales were relentlessly hunted for their oil and blubber, a practice that went into decline by the close of the 1980s.