Assertion: swimmeret | /r/CapableOf | swing in a power stroke
Facets:
value: periodically
type: TEMPORAL
value: during forward swimming
type: TEMPORAL
Source sentences:
text: During forward swimming, each swimmeret periodically swings posteriorly (retraction) in a power stroke and then swings anteriorly (protraction) in a return stroke to its resting position, a periodic cycle of retraction and protraction.