{HEAD ~ A pair} of cutter blades are arranged to the right and to {TAIL ~ the left} of the mulching mower in a cutter housing which opens downwardly 
are arranged to
{ HEAD ~ A pair } of cutter blades are arranged to the right and to { TAIL ~ the left } of the mulching mower in a cutter housing which opens downwardly
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH