A strip of staples 11 sits in {HEAD ~ straddled relationship} on {TAIL ~ the staple guide} 12 
on
A strip of staples 11 sits in { HEAD ~ straddled relationship } on { TAIL ~ the staple guide } 12
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH