Two brown and black dogs are jumping a fence.
there was only one dog
If there are two dogs there cannot be only one dog.
exists e1 s1 s2 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_jump(e1) & n_fence(x2) & n_dog(x1) & a_black(s2) & Theme(s2,x1) & a_brown(s1) & Theme(s1,x1) & card_eq_2(x1))
exists p1 x1 x2.((x1 = x2) & n_dog(x2) & card_eq_1(x2) & r_only(x2))