A woman is preparing food on a grill.
The woman is cooking steak.
Preparing food dos not imply steak is being prepared.
exists e1 x1 x2 x3.(on(e1,x3) & n_grill(x3) & Theme(e1,x2) & Actor(e1,x1) & v_prepare(e1) & n_food(x2) & n_woman(x1))
exists p1 x1.(n_woman(x1) & exists s1 x2.((x1 = x2) & n_steak(x2) & a_cooking(s1) & Theme(s1,x2)))