This invention is of {HEAD ~ interest} in {TAIL ~ the field} of the guidance of public transport road vehicles by a rail 
in
This invention is of { HEAD ~ interest } in { TAIL ~ the field } of the guidance of public transport road vehicles by a rail
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH