More specifically, {TAIL ~ the invention} relates to patterning materials at the nanoscale level utilizing {HEAD ~ block copolymers} 
More specifically , { TAIL ~ the invention } relates to patterning materials at the nanoscale level utilizing { HEAD ~ block copolymers }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD