People around a table playing roulette.
There are people around a table gambling.
Not all gambling is roulette.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_roulette(x4) & (x1 = x3) & around(x1,x2) & n_table(x2) & n_people(x1))
exists p1 x1 x2 x3 x4.((x1 = x2) & around(x2,x3) & n_gambling(x3) & of(x3,x4) & n_table(x4) & n_people(x2))