Two dogs, one brown and one black, playing with each other.
Two dogs are playing with each other.
Two dogs playing with each other is a synonym of two dogs playing with each other.
exists e1 s1 x1 x2 x3 x4 x5.(all x6.(n_other(x6) -> with(e1,x6)) & Actor(e1,x1) & v_play(e1) & rel(x1,x2) & subset_of(x4,x2) & Theme(s1,x5) & a_black(s1) & (x4 = x5) & n_thing(x4) & card_eq_1(x4) & subset_of(x3,x2) & n_brown(x3) & card_eq_1(x3) & n_dog(x1) & card_eq_2(x1))
exists e1 x1.(all x2.(n_other(x2) -> with(e1,x2)) & Actor(e1,x1) & v_play(e1) & n_dog(x1) & card_eq_2(x1))