Assertion: marabou stork | /r/HasAspect | hollow toes
Facets:
value: due to their size
type: CAUSE
value: to reduce their weight
type: PURPOSE
Source sentences:
text: Due to their enormous size, Marabou storks have hollow toes and leg bones, which balance their body weight, and enable them to fly.
text: Due to their size, Marabou Storks have hollow toes and leg bones to reduce their weight and enable them to fly.