{HEAD ~ Copolymers} having the following compositions may also be hydrogenated according {TAIL ~ the present invention}: 
hydrogenated according
{ HEAD ~ Copolymers } having the following compositions may also be hydrogenated according { TAIL ~ the present invention } :
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH