A basketball arena before a basketball game.
A basketball arena.
There is a basketball arena which is before game
exists x1 x2 x3 x4.(a_topic(x1) & before(x1,x3) & n_game(x3) & of(x3,x4) & n_basketball(x4) & n_arena(x1) & of(x1,x2) & n_basketball(x2))
exists x1 x2.(a_topic(x1) & n_arena(x1) & of(x1,x2) & n_basketball(x2))