{HEAD ~ The use} of colloidal metal labels in a resolubilizable form provides {TAIL ~ extremely rapid kinetics} of labeling 
provides
{ HEAD ~ The use } of colloidal metal labels in a resolubilizable form provides { TAIL ~ extremely rapid kinetics } of labeling
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH