girl on a bicycle going down a street.
A girl is playing a game.
If a girl is on a bicycle, then she is not playing a game.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(x1,x2) & a_down(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x3) & v_go(e1) & n_street(x4) & (x2 = x3) & n_bicycle(x2) & n_girl(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_game(x2) & n_girl(x1))