{HEAD ~ Each} of the corners 23 is cut off by {TAIL ~ a diagonal cut} 24 
is cut off by
{ HEAD ~ Each } of the corners 23 is cut off by { TAIL ~ a diagonal cut } 24
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH