Boys playing tag football run down the field.
Boys wearing uniforms playing
Juts because the boys are playing football doesn't necessarily mean wearing uniforms.
exists e1 x1 x2 x3 x4 x5 x6.(n_field(x6) & a_topic(x1) & down(e1,x6) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_run(x3) & of(x3,x5) & n_football(x5) & of(x3,x4) & n_tag(x4) & (x1 = x2) & n_boy(x1))
exists e1 e2 x1 x2 x3 x4.(a_topic(x1) & Theme(e2,x3) & Actor(e2,x2) & v_wear(e2) & Actor(e1,x4) & v_play(e1) & (x3 = x4) & n_uniform(x3) & (x1 = x2) & n_boy(x1))