Also, {HEAD ~ one or more cross} linking {TAIL ~ agents} may be used in conjunction with one or more gelling agents in order to cross link the gelling agent 
linking
Also , { HEAD ~ one or more cross } linking { TAIL ~ agents } may be used in conjunction with one or more gelling agents in order to cross link the gelling agent
OTH OTH HEAD 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 OTH OTH OTH OTH OTH OTH OTH