{HEAD ~ The moladable material} 2 wherein {TAIL ~ said monomer} is 2 hydroxyethyl methacrylate 
wherein
{ HEAD ~ The moladable material } 2 wherein { TAIL ~ said monomer } is 2 hydroxyethyl methacrylate
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH