Two girls walking on the street in shorts and sweatshirts.
Two sisters walk home
Just because two girls are walking together does not mean that they are sisters.
exists e1 x1 x2 x3 x4 x5 x6.(n_street(x3) & a_topic(x1) & in(e1,x4) & subset_of(x6,x4) & n_sweatshirt(x6) & subset_of(x5,x4) & n_shorts(x5) & on(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists e1 x1 x2.(Time(e1,x2) & n_home(x2) & Actor(e1,x1) & v_walk(e1) & n_sister(x1) & card_eq_2(x1))