{HEAD ~ The forward end} of support structure 18 is interconnected by {TAIL ~ a transverse cross brace} 30 adapted to be attached to tractor 12 
is interconnected by
{ HEAD ~ The forward end } of support structure 18 is interconnected by { TAIL ~ a transverse cross brace } 30 adapted to be attached to tractor 12
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH