Assertion: killer whale's fin | /r/HasProperty | flexible
Facets:
value: for several days
type: TEMPORAL
Source sentences:
text: The dorsal fin and tail flukes of a newborn calf are flexible for several days.
text: In the first few days after birth, the dorsal fin and tail flukes are flexible and pliable.
text: When orcas are born, their dorsal fin is flexible, but it stiffens as the calf ages.