{HEAD ~ An apparatus} for exercising {TAIL ~ one or more shoulder joints} of a user, comprising: 
for exercising
{ HEAD ~ An apparatus } for exercising { TAIL ~ one or more shoulder joints } of a user , comprising :
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH