A boy pushing a miniature car on a lawn.
A boy pushes a baby pram on the driveway.
He can either be pushing a miniature car or a baby pram. He can either be on a lawn or on the driveway.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_lawn(x4) & Theme(e1,x3) & Actor(e1,x2) & v_push(e1) & n_car(x3) & a_miniature(s1) & Theme(s1,x3) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2 x3 x4.(n_driveway(x4) & Theme(e1,x2) & Actor(e1,x1) & v_push(e1) & on(x2,x4) & n_pram(x2) & of(x2,x3) & n_baby(x3) & n_boy(x1))