Assertion: shoulder's bone | /r/CapableOf | rub on bone
Facets:
Source sentences:
text: In arthritis of the shoulder, the cartilage of the ball and socket (glenohumeral joint) is lost so that bone rubs on bone.
text: In end-stage osteoarthritis, all of the cartilage is gone, causing bone to rub on bone.
text: This can cause bone to rub on bone instead of glide across the surface.