Two girls laughing within a crowd.
There is a crowd of people are two girls in it are laughing.
For the two girls to be laughing in a crowd, there must be a crowd. For the two girls to be laughing within it, two girls in it must be laughing.
exists e1 x1 x2 x3.(a_topic(x1) & within(e1,x3) & n_crowd(x3) & Actor(e1,x2) & v_laugh(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists p1 x1 p2 x2 x3 x4.((x1 = x2) & exists e1 x5 x6.((x4 = x5) & Actor(e1,x6) & v_laugh(e1) & (x5 = x6) & in(x5,x2) & n_girl(x5) & card_eq_2(x5)) & n_thing(x2) & (x2 = x4) & of(x2,x3) & n_people(x3) & n_crowd(x2))