A man in an orange vest is operating a machine with a snow plow attachment.
A man is operating a snow plow to clear his driveway.
Just because the man is operating a snow plow, does not mean he is clearing his driveway.
exists e1 x1 x2 x3 x4 x5 x6 x7.(with(e1,x5) & n_attachment(x5) & of(x5,x7) & n_plow(x7) & of(x5,x6) & n_snow(x6) & Theme(e1,x4) & Actor(e1,x1) & v_operate(e1) & n_machine(x4) & in(x1,x2) & n_vest(x2) & of(x2,x3) & n_orange(x3) & n_man(x1))
exists e1 p1 x1 x2 x3 x4 x5.(Topic(e1,p1) & exists e2.(Theme(e2,x5) & Actor(e2,x1) & v_clear(e2)) & n_driveway(x5) & of(x5,x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x2) & v_operate(e1) & n_plow(x3) & of(x3,x4) & n_snow(x4) & n_man(x2) & n_man(x1))