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