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