Two boys are kicking a ball in shallow water.
The two boys are playing kick ball back and forth to each other.
Boys kicking a ball does not necessarily imply that they are playing kick ball.
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_water(x3) & a_shallow(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_kick(e1) & n_ball(x2) & n_boy(x1) & card_eq_2(x1))
exists e2 e1 s1 s2 x1 x2 x3 x4 x5.(n_boy(x1) & card_eq_2(x1) & all x7.(n_other(x7) -> to(e2,x7)) & a_forth(s2) & Manner(e2,s2) & Theme(e2,x4) & Actor(e2,x1) & v_play(e2) & n_ball(x4) & of(x4,x5) & n_kick(x5) & all x6.(n_other(x6) -> to(e1,x6)) & a_back(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_ball(x2) & of(x2,x3) & n_kick(x3))