Girls in blue dresses are holding large blue cloths.
A group of boys playing ball.
The gender of the kids can either be girls or boys, but not both.
exists e1 s1 s2 s3 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & n_cloth(x3) & a_blue(s3) & Theme(s3,x3) & a_large(s2) & Theme(s2,x3) & in(x1,x2) & n_dress(x2) & a_blue(s1) & Theme(s1,x2) & n_girl(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_ball(x4) & (x1 = x3) & of(x1,x2) & n_boy(x2) & n_group(x1))