people are playing a carnival game.
A carnival game is being played.
if people are playing a carnival game, then it is being played
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_game(x2) & a_carnival(s1) & Theme(s1,x2) & n_people(x1))
exists e1 s1 x1.(Theme(e1,x1) & v_play(e1) & n_game(x1) & a_carnival(s1) & Theme(s1,x1))