Assertion: mammoth | /r/CapableOf | spread to east
Facets:
value: west
type: LOCATION
value: to siberia
type: TRANSITIVE-OBJECT
value: gradually
type: MANNER
Source sentences:
text: Gradually, they spread west to the British Isles and east to Siberia, but whether they crossed into the New World 1.8 million years ago remains a matter of debate.