Assertion: plesiosaur's neck | /r/CapableOf | serve as snorkel
Facets:
Source sentences:
text: It has also been suggested that the long necks of plesiosaurs served as a snorkel and allowed them to breathe air while the body remained underwater.
text: It has also been suggested that the long necks of plesiosaurs served as a snorkel and allowed then to breathe air while the body remained underwater.