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