{HEAD ~ These complexes} are also soluble in many starting components used for obtaining {TAIL ~ specific polymers} 
{ HEAD ~ These complexes } are also soluble in many starting components used for obtaining { TAIL ~ specific polymers }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL