Young people play an outdoor sport involving a ball and sticks.
There is a sport being played by young people.
The sentence is rephrased with young people, play, and sport being flipped around.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5 x6.(Theme(e2,x2) & Actor(e2,x1) & v_play(e2) & Theme(e1,x4) & Actor(e1,x3) & v_involve(e1) & subset_of(x6,x4) & n_stick(x6) & subset_of(x5,x4) & n_ball(x5) & (x2 = x3) & n_sport(x2) & a_outdoor(s2) & Theme(s2,x2) & n_people(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1 e1 s1 x2 x3 x4.((x1 = x2) & Actor(e1,x4) & n_people(x4) & a_young(s1) & Theme(s1,x4) & Theme(e1,x3) & v_play(e1) & (x2 = x3) & n_sport(x2))