Assertion: elbow's joint | /r/HasProperty | synovial joints
Facets:
Source sentences:
text: Hinge joints are synovial joints that only move on one plane (ex you can bring your arm up at your elbow
text: The human skeleton has joints called synovial joints .
text: Hinge joints are synovial joints that only move on one plane (ex you can bring your arm up at your elbow