Assertion: walrus | /r/CapableOf | migrate in groups of females
Facets:
value: northward
type: MANNER
value: during the summer
type: TEMPORAL
Source sentences:
text: During the summer, the other walruses migrate northward, following the ice pack, in groups of females with young, adolescent (around 4 years old) and young adult males (around 9 years old).