A man in all white is plowing the fields with two ox.
The man is sitting on a couch.
A man cannot simultaneously be sitting on a couch while plowing.
exists x1 x3.(n_field(x3) & all x2.(n_white(x2) -> exists e1 x4.(with(e1,x4) & n_ox(x4) & card_eq_2(x4) & Theme(e1,x3) & Actor(e1,x1) & v_plow(e1) & in(x1,x2))) & n_man(x1))
exists e1 x1 x2.(n_man(x1) & on(e1,x2) & n_couch(x2) & Actor(e1,x1) & v_sit(e1))