Two blond women sit in grass with a small dog.
Two blond women sitting in the grass are sisters.
You can not infer they are with their sisters.
exists e1 s1 s2 x1 x2 x3.(with(e1,x3) & n_dog(x3) & a_small(s2) & Theme(s2,x3) & in(e1,x2) & n_grass(x2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1) & a_blond(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 p1 s1 x1 x2 x3.(n_grass(x3) & exists x4.((x1 = x4) & n_sister(x4)) & in(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_woman(x1) & a_blond(s1) & Theme(s1,x1) & card_eq_2(x1))