{TAIL ~ The graft copolymer} 3 wherein {HEAD ~ the graft copolymer} is composed of 
{ TAIL ~ The graft copolymer } 3 wherein { HEAD ~ the graft copolymer } is composed of
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH