{HEAD ~ A cement overlay} is {TAIL ~ a slurry type mixture} of cement, sand and polymers 
is
{ HEAD ~ A cement overlay } is { TAIL ~ a slurry type mixture } of cement , sand and polymers
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH