Two dogs wrestle in a field.
The dogs are German Shepherds.
Not all dogs are German Shepherds.
exists e1 x1 x2.(in(e1,x2) & n_field(x2) & Actor(e1,x1) & v_wrestle(e1) & n_dog(x1) & card_eq_2(x1))
exists p1 x1.(n_dog(x1) & exists s1 x2.((x1 = x2) & n_shepherd(x2) & a_german(s1) & Theme(s1,x2)))