One girl is standing on the street, and the other is crouching looking at something on the ground.
Two girls are on their feet outside.
One girl is standing and the other is kneeling so they must be on their feet.
exists e2 e1 p1 x1 x2 x3 x5.(n_ground(x5) & n_other(x3) & n_street(x2) & exists e3 x4.(at(e3,x4) & on(x4,x5) & n_thing(x4) & Actor(e3,x3) & v_look(e3)) & Topic(e2,p1) & Actor(e2,x3) & v_crouch(e2) & on(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_girl(x1) & card_eq_1(x1))
exists p1 s1 x1 x2.(a_outside(s1) & Manner(p1,s1) & on(x1,x2) & n_foot(x2) & of(x2,x1) & n_thing(x1) & n_girl(x1) & card_eq_2(x1))