Man riding a blue step scooter in front of fire engine in parking lot.
A man is in front of a fire engine.
Riding in front of fire engine means the person is in front of fire engine.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(a_topic(x1) & in(e1,x8) & n_lot(x8) & of(x8,x9) & n_parking(x9) & in(e1,x5) & of(x5,x6) & n_engine(x6) & of(x6,x7) & n_fire(x7) & n_front(x5) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_step(x3) & of(x3,x4) & n_scooter(x4) & a_blue(s1) & Theme(s1,x3) & (x1 = x2) & n_man(x1))
exists p1 x1.(exists x2 x3 x4.(in(x1,x2) & of(x2,x3) & n_engine(x3) & of(x3,x4) & n_fire(x4) & n_front(x2)) & n_man(x1))