{TAIL ~ Pneumatic tire} with tread having {HEAD ~ see through main groove} with amplitude, blocks and sub grooves 
{ TAIL ~ Pneumatic tire } with tread having { HEAD ~ see through main groove } with amplitude , blocks and sub grooves
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH