A child is riding a horse, while carrying a small white ball in a blue net.
The child is playing a game.
A child riding a horse, while carrying a small white ball in a blue net, is not necessarily playing a game.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_carry(e2) & in(x3,x4) & n_net(x4) & a_blue(s3) & Theme(s3,x4) & n_ball(x3) & a_white(s2) & Theme(s2,x3) & a_small(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2) & n_child(x1))
exists e1 x1 x2.(n_child(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_game(x2))