Assertion: killer whale's family | /r/HasProperty | dolphin
Facets:
Source sentences:
text: Killer whales are also called "orcas" and belong to a family called cetaceans, which includes animals such as dolphins and Beluga whales.
text: The orca, or killer whale, is the largest and most widely distributed of the Delphinids, the family of cetaceans which includes dolphins and porpoises.