a girl is playing a carnival game
The girl is there with her parents.
You can not infer they are parents.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_game(x2) & of(x2,x3) & n_carnival(x3) & n_girl(x1))
exists p1 s1 x1 x2.(n_parent(x2) & of(x2,x1) & n_female(x1) & n_girl(x1) & a_there(s1) & Manner(p1,s1) & with(x1,x2))