Assertion: knee | /r/CapableOf | become stiff
Facets:
value: sometimes
type: TEMPORAL
value: very
type: DEGREE
value: for no obvious reason
type: CAUSE
value: in the weeks after the operation
type: TEMPORAL
value: completely
type: DEGREE
Source sentences:
text: When the knee is locked it becomes completely stiff and all the ligaments of the joint are tight.
text: Sometimes the knee can become very stiff in the weeks after the operation for no obvious reason.