Two boys kicking a ball over a net outside.
Boys playing football.
Kicking a ball over a net outside could imply a variety of sports, not just football.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & over(e1,x4) & n_outside(x4) & a_net(s1) & Theme(s1,x4) & Theme(e1,x3) & Actor(e1,x2) & v_kick(e1) & n_ball(x3) & (x1 = x2) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_football(x3) & (x1 = x2) & n_boy(x1))