The teenagers are fighting over a basketball during a game.
A fish stole the ball.
Teenagers are humans and not fish.
exists e1 x1 x2 x3.(n_teenager(x1) & during(e1,x3) & n_game(x3) & over(e1,x2) & n_basketball(x2) & Actor(e1,x1) & v_fight(e1))
exists e1 x1 x2.(n_ball(x2) & Theme(e1,x2) & Actor(e1,x1) & v_steal(e1) & n_fish(x1))