Assertion: blanket | /r/HasProperty | freed along a portion of one edge
Facets:
value: by unzipping the zippers
type: MANNER
Source sentences:
text: To permit the bed to be entered or left, the top sheet and blanket may be freed along a portion of one edge by partially unzipping the zippers 20 and 22 so that a portion adjacent the head ends of the top sheet and blanket can be folded back.