Two boys in blue shirts wearing backpacks.
Two boys wearing backpacks and blue shirts.
blue shirts wearing backpack is inferred as wearing backpacks and blue shirts.
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 e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & subset_of(x5,x3) & n_shirt(x5) & a_blue(s1) & Theme(s1,x5) & subset_of(x4,x3) & n_backpack(x4) & (x1 = x2) & n_boy(x1) & card_eq_2(x1))