Assertion: horseshoe crab | /r/AtLocation | earth
Facets:
value: for 350 million years
type: TEMPORAL
Source sentences:
text: It has been on Earth some 220 million years, longer than dinosaurs.
text: Horseshoe crabs have been on Earth for over 300 million years.
text: The horseshoe crab has been on Earth for 350 million years.