Assertion: great auk | /r/CapableOf | use its wings
Facets:
value: to propel itself
type: PURPOSE
value: sometimes
type: TEMPORAL
Source sentences:
text: The great auk was generally an excellent swimmer, using its wings to propel itself underwater.
text: Great auks walked slowly and sometimes used their wings to help them traverse rough terrain.
text: The Great Auk was generally an excellent swimmer, using its wings to propel itself underwater.