So you need to have grip, but you dont want too much resistance. And around and around. Our compounds are designed with a high content of silica to deliver very low resistance, Mr. Coke said. There are other issues as well. It has to be all in, he said. Silica decreases the tires energy consumption.
there is no one used their invention to make wheels.
( z0 use :ARG0 ( z1 no-one ) :ARG1 ( z2 invent :ARG0 z1 ) :ARG2 ( z3 make :ARG0 z1 :ARG1 ( z4 wheel ) ) )
(z0 / use-01
    :ARG0 (z1 / no-one)
    :ARG1 (z2 / invent-01
              :ARG0 z1)
    :ARG2 (z3 / make-01
              :ARG0 z1
              :ARG1 (z4 / wheel)))
there is no one used their invention to make wheels .
z0 :ARG0 z1
z0 :ARG1 z2
z2 :ARG0 z1
z0 :ARG2 z3
z3 :ARG0 z1
z3 :ARG1 z4