{HEAD ~ Each} of the partitions has hooks and {TAIL ~ notches} to help hold the assembly together 
has
{ HEAD ~ Each } of the partitions has hooks and { TAIL ~ notches } to help hold the assembly together
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH