Assertion: puffin's foot | /r/CapableOf | act as rudder
Facets:
value: at the other end
type: LOCATION
Source sentences:
text: While underwater, they steer themselves with outstretched wings, almost appearing to fly, while its feet act as a rudder.
text: At one end the bill and head cut through the water, which passes smoothly over the streamlined body, and at the other end, legs and feet act as rudders.