Heemeyer equipped an old bulldozer with three television cameras and monitors so he could see to steer.
Heemeyer could never see to steer before
( z1 possible :polarity - :ARG1 ( z2 see :ARG0 ( z3 person :name ( z4 name :op "Heemeyer" ) ) :ARG1 ( z5 steer :ARG0 z3 ) :time ( z6 ever ) ) :time ( z7 before ) )