Assertion: cover | /r/CapableOf | play important role
Facets:
value: in maintaining soil quality
type: PURPOSE
value: in a variation of it
type: OTHER
Source sentences:
text: Cloud cover thus plays an important role in the energetic balance of the atmosphere and a variation of it is a consequence of and to the climate change expected by recent studies.
text: Cover crops play an important role in maintaining soil quality and productivity on Ontario farms.