Said {TAIL ~ speed changing operation} of said either one transmission mechanism started in {HEAD ~ the step} establishes a third shift position in the automatic transmission 
Said { TAIL ~ speed changing operation } of said either one transmission mechanism started in { HEAD ~ the step } establishes a third shift position in the automatic transmission
OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH