Assertion: smog | /r/CapableOf | force the air
Facets:
value: to remain stationary
type: PURPOSE
Source sentences:
text: Commonly, smog is caused by an inversion, in which cool air presses down on a column of warm air, forcing the air to remain stationary.
text: Commonly, smog is caused by an inversion, in which cool air presses down on a column of warm air, forcing the air to remain stationary.