Assertion: snorkel | /r/CapableOf | enable swimmer
Facets:
value: to remain submerged
type: PURPOSE
value: to expel the water
type: PURPOSE
Source sentences:
text: It enables a swimmer to swim submerged for extended periods of time.
text: Accordingly, a snorkel should both prevent any accidentally shipped water reaching the user or swimmer, and also enable the swimmer to readily expel the water.
text: It is expected that a snorkel employing this construction should enable a swimmer to remain submerged for extended periods.