These girls are in uniforms and are playing field hockey.
The girls in uniforms playing field hockey are on teams.
Just because playing field hockey does not mean on teams.
exists e1 p1 x1 x2 x3.(n_girl(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_hockey(x2) & of(x2,x3) & n_field(x3) & exists x4.(in(x1,x4) & n_uniform(x4)))
exists e1 p1 x1 x2 x3 x4 x5.(n_girl(x1) & exists x6.(on(x1,x6) & n_team(x6)) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_hockey(x4) & of(x4,x5) & n_field(x5) & (x2 = x3) & n_uniform(x2))