{TAIL ~ a carrier} that rotatably supports the planetary gear in such a state so as to be coupled to {HEAD ~ the drive shaft} 
{ TAIL ~ a carrier } that rotatably supports the planetary gear in such a state so as to be coupled to { HEAD ~ the drive shaft }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD