{HEAD ~ The squeegee} is {TAIL ~ a kind} of tool familiar to the lay person who may employ one to wash the household windows 
is
{ HEAD ~ The squeegee } is { TAIL ~ a kind } of tool familiar to the lay person who may employ one to wash the household windows
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH