Assertion: humpback whale | /r/HasProperty | dark-skinned mammals
Facets:
Source sentences:
text: Humpback whales, or Megaptera novaeangliae, are dark-skinned mammals and grow up to 55 feet in length.
text: Humpback whales, or Megaptera novaeangliae, are dark-skinned mammals and grow up to 55 feet in length.