Assertion: blue whale's number | /r/CapableOf | reduce their numbers
Facets:
value: significantly
type: MANNER
value: during the early 1900s
type: TEMPORAL
Source sentences:
text: The number of blue whales in the world’s oceans is only a small fraction of what it was before modern commercial whaling significantly reduced their numbers during the early 1900s, but populations are increasing globally.