{HEAD ~ The two second main grooves} are disposed on two sides of {TAIL ~ the first main groove} in the tire width direction 
{ HEAD ~ The two second main grooves } are disposed on two sides of { TAIL ~ the first main groove } in the tire width direction
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH