Assertion: echinoderm's arm | /r/HasProperty | bent
Facets:
value: backwards
type: MANNER
Source sentences:
text: When a starfish finds itself upside down, two adjacent arms are bent backwards to provide support, the opposite arm is used to stamp the ground while the two remaining arms are raised on either side; finally the stamping arm is released as the starfish turns itself over and recovers its normal stance.