Assertion: manatee | /r/CapableOf | move their head
Facets:
value: sideways
type: MANNER
value: by itself
type: MANNER
Source sentences:
text: One of the downfalls of the anatomy of the manatee is that they can’t move their head by itself.
text: Manatees are not able to move their heads sideways because they have only 6 neck vertebrae.