The upwardly directed wind, generated at the blade approaching portion 51 as described above, raises uncut grasses at {HEAD ~ the blade} approaching {TAIL ~ portion} 51 
The upwardly directed wind , generated at the blade approaching portion 51 as described above , raises uncut grasses at { HEAD ~ the blade } approaching { TAIL ~ portion } 51
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH