Assertion: snorkel's mouthpiece | /r/CapableOf | comprise a mouthpiece portion
Facets:
Source sentences:
text: The mouthpiece 50 comprises a mouthpiece portion 52 which receives the teeth of the user and a flange 54 which is received within the lips of a user.
text: The mouthpiece 50 comprises a mouthpiece portion 52 which receives the teeth of the user and a flange 54 which is received within the lips of a user.