Assertion: backstroke's body | /r/CapableOf | roll to side
Facets:
value: from side
type: MANNER
Source sentences:
text: In his stroke, the arms were brought forward, alternating, while the body rolled from side to side.
text: Two keys to a proper backstroke are that your arms move with equal strength (otherwise you will swim off to one side), and that your body rolls from side to side so that your arms catch enough water to propel you forward.