Assertion: sperm whale's number | /r/HasProperty | hard to determine
Facets:
Source sentences:
text: Bottlenose dolphins live in captivity across the world, though exact numbers are hard to determine.
text: Hundreds if not thousands of bottlenose dolphins live in captivity across the world, though exact numbers are hard to determine.
text: Hundreds if not thousands of bottlenose dolphins live in captivity across the world, though exact numbers are hard to determine.