Assertion: cold front's air | /r/CapableOf | move into area
Facets:
value: after the frontal change
type: TEMPORAL
Source sentences:
text: If the wedge is retreating and warmer air is moving into an area previously occupied by cool air, the front is termed a warm front.
text: The coldest air may move over an area many hours after the frontal change, sometimes bringing snow in wintertime.