Assertion: blue whale's blowhole | /r/HasProperty | mysticetes
Facets:
Source sentences:
text: Whales are mammals in the order Cetacea, and are grouped into two suborders: whales with teeth and a single blowhole (Odontocetes) and whales with baleen and two blowholes (Mysticetes).
text: Description Visually, the two suborders can be easily distinguished by the presence of teeth and a single blowhole (Odontocetes), or baleen and two blowholes (Mysticetes).