Assertion: shoulder's muscle | /r/PartOf | the rotator cuff
Facets:
Source sentences:
text: The shoulder has four muscles that make up the rotator cuff.
text: The humerus is held to the shoulder blade by the 4 muscles that make up the rotator cuff.
text: These can range from problems with the muscles that make up the rotator cuff, to tendonitis, to impingement of nerves and tendons caused by inflammation or actual structural changes.