One girl and one boy playing field hockey at night battle for control of the ball.
Children are playing field hockey.
One girl and one boy are children, and control of the ball implies playing.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_ball(x9) & a_topic(s1) & subset_of(x2,s1) & at(e1,x6) & for(x6,x8) & of(x8,x9) & n_control(x8) & n_battle(x6) & of(x6,x7) & n_night(x7) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_hockey(x4) & of(x4,x5) & n_field(x5) & (x2 = x3) & n_boy(x2) & card_eq_1(x2) & subset_of(x1,s1) & n_girl(x1) & card_eq_1(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_hockey(x2) & of(x2,x3) & n_field(x3) & n_child(x1))