Assertion: appendicular skeleton's girdle | /r/HasProperty | connected by muscle
Facets:
value: to enable it
type: PURPOSE
value: to the back of the thorax
type: TRANSITIVE-OBJECT
Source sentences:
text: The pectoral girdle is connected by muscles to the back of the thorax to enable it to have a supporting structure as well as giving the shoulders greater freedom of movement which in turn allows greater mobility of the arms.