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