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