Two girls laugh while other girls look on.
Two girls are crying because a boy kicked them in the shin.
If the girls laugh, then they are not crying.
exists e1 p1 x1.(exists e2 p2 x2.(exists s1.(Theme(s1,x2) & a_on(s1)) & Topic(e2,p2) & Actor(e2,x2) & v_look(e2) & -(x2 = x1) & n_girl(x2)) & n_girl(x1) & n_girl(x1) & while(e1,p1) & Actor(e1,x1) & v_laugh(e1) & card_eq_2(x1))
exists e1 p1 x1 x3.(n_shin(x3) & exists e2 x2.(in(e2,x3) & Theme(e2,x1) & Actor(e2,x2) & v_kick(e2) & n_boy(x2)) & n_thing(x1) & because(e1,p1) & Actor(e1,x1) & v_cry(e1) & n_girl(x1) & card_eq_2(x1))