Assertion: blue whale | /r/AtLocation | their upper jaws
Facets:
Source sentences:
text: Blue whales are baleen whales, which means they have fringed plates of fingernail-like material, called baleen, attached to their upper jaws.
text: Blue whales are baleen whales, which means they have fringed plates of fingernail-like material, called baleen, attached to their upper jaws.