Two children with a yellow and blue umbrella play in the bathtub.
Children using umbrella
You can not infer they have an umbrella.
exists s1 s2 x1 x2 x3 x4.(n_bathtub(x4) & a_topic(x1) & with(x1,x2) & in(x2,x4) & n_play(x2) & of(x2,x3) & n_umbrella(x3) & a_blue(s2) & Theme(s2,x2) & a_yellow(s1) & Theme(s1,x2) & n_child(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_use(e1) & n_umbrella(x3) & (x1 = x2) & n_child(x1))