{HEAD ~ These interconnect materials} include doped polysilicon, polycides, and {TAIL ~ tungsten metal} 
include
{ HEAD ~ These interconnect materials } include doped polysilicon , polycides , and { TAIL ~ tungsten metal }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL