Assertion: sea otter | /r/CapableOf | use their webbed feet
Facets:
value: for propulsion
type: PURPOSE
value: faster
type: MANNER
Source sentences:
text: To swim faster they use their webbed feet for propulsion and undulate their bodies.
text: Using their webbed feet, which are well adapted for swimming, sea otters can dive more than 200 feet and stay underwater for up to 5 minutes.