Assertion: crustacean's appendage | /r/HasProperty | antenna
Facets:
value: usually
type: DEGREE
Source sentences:
text: Crustaceans differ from other arthropods in having two pairs of appendages (antennae and antennules) in front of the mouth and paired appendages near the mouth that function as jaws.
text: The head carries pairs of appendages, usually the antennae, used for sensing its environment and for feeding.