There are two dogs playing with each other.
A couple dogs engage in lighthearted play.
THE FIRST DOGS MAY NOT BE LIGHTHEARTED
exists p1 x1 e1 x2 x3.((x1 = x2) & all x4.(n_other(x4) -> with(e1,x4)) & Actor(e1,x3) & v_play(e1) & (x2 = x3) & n_dog(x2) & card_eq_2(x2))
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_play(x3) & a_lighthearted(s1) & Theme(s1,x3) & Actor(e1,x1) & v_engage(e1) & n_dog(x1) & of(x1,x2) & n_couple(x2))