Assertion: geologist | /r/CapableOf | think of last 50 million years
Facets:
value: as the recent past
type: TEMPORAL
Source sentences:
text: Geologists think of the last 50 million years as the recent past, both because they represents only about one percent of the age of the earth, and because plate tectonics, the geologic process that controls conditions within the solid part of the earth, has operated without major change during that time period.