{HEAD ~ The rotational drive force} of the second shaft in the forward direction is transmitted to the planetary gear mechanism via a first one way clutch unit and {TAIL ~ a first power transmitting mechanism} 
is transmitted via
{ HEAD ~ The rotational drive force } of the second shaft in the forward direction is transmitted to the planetary gear mechanism via a first one way clutch unit and { TAIL ~ a first power transmitting mechanism }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH REL REL OTH OTH OTH OTH OTH REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL