{HEAD ~ A bead} of glue is placed between {TAIL ~ glue flap} 24 to secure edge 23 to glue flap 24 and allowed to dry 
{ HEAD ~ A bead } of glue is placed between { TAIL ~ glue flap } 24 to secure edge 23 to glue flap 24 and allowed to dry
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH