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