A girl in a floral dress cries on a sand dune.
A boy is playing with a basketball.
There can be either a boy or a girl but not both, and one either is playing with a basketball or cries on a sand dune, but not both simultaneously.
exists s1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & on(x2,x4) & n_dune(x4) & of(x4,x5) & n_sand(x5) & n_cry(x2) & of(x2,x3) & n_dress(x3) & a_floral(s1) & Theme(s1,x2) & n_girl(x1))
exists e1 x1 x2.(with(e1,x2) & n_basketball(x2) & Actor(e1,x1) & v_play(e1) & n_boy(x1))