The graft copolymer is formed by the graft polymerizing {HEAD ~ an effective amount} of {TAIL ~ each} of the following components together to provide a highly absorbent copolymer: 
of
The graft copolymer is formed by the graft polymerizing { HEAD ~ an effective amount } of { TAIL ~ each } of the following components together to provide a highly absorbent copolymer :
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH