{HEAD ~ Another objective} of the present invention is to provide {TAIL ~ a method} that can manufacture such polymers efficiently 
is to provide
{ HEAD ~ Another objective } of the present invention is to provide { TAIL ~ a method } that can manufacture such polymers efficiently
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH