Little boys are playing soccer.
Little boys are on a team playing soccer.
Not all little boys playing soccer are on a team.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_soccer(x2) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
exists p1 s1 x1.(exists e1 x2 x3 x4.(on(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_soccer(x4) & (x2 = x3) & n_team(x2)) & n_boy(x1) & a_little(s1) & Theme(s1,x1))