Three blond boys playing on metal contraption.
brothers are playing together on a slide
Three blond boys playing on metal contraption does not indicate that they are brothers
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_contraption(x3) & of(x3,x4) & n_metal(x4) & Actor(e1,x2) & v_play(e1) & (x1 = x2) & n_boy(x1) & a_blond(s1) & Theme(s1,x1) & card_eq_3(x1))
exists e1 s1 x1 x2.(on(e1,x2) & n_slide(x2) & a_together(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1) & n_brother(x1))