Assertion: cetacean's ancestor | /r/CapableOf | migrate into lake baikal
Facets:
value: from the arctic
type: TRANSITIVE-OBJECT
value: via the siberian ice sheet
type: TRANSITIVE-OBJECT
Source sentences:
text: The ancestor of the Baikal seal migrated into Lake Baikal from the Arctic (via the Siberian ice sheet) and became isolated there.