Two boys in blue shirts wearing backpacks.
Two girls in ballet shoes and tutus.
there were two boys and girls
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_backpack(x4) & (x2 = x3) & n_shirt(x2) & a_blue(s1) & Theme(s1,x2) & n_boy(x1) & card_eq_2(x1))
exists x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & subset_of(x5,x2) & n_tutu(x5) & subset_of(x3,x2) & n_shoe(x3) & of(x3,x4) & n_ballet(x4) & n_girl(x1) & card_eq_2(x1))