Assertion: mastodon | /r/CapableOf | travel over the bering strait land bridge
Facets:
value: before their relative
type: TEMPORAL
Source sentences:
text: Mastodons (Mammut) entered North America about 15 million years ago, traveling over the Bering Strait land bridge, long before their relative, the mammoth, according to the Yukon Beringia Interpretive Centre in Canada.