Two girls are sitting on the ground and one is wearing an animal costume.
The girls are friends.
You can not infer they are friends.
exists e1 e2 x1 x2 x3 x4 x5.(n_ground(x2) & Theme(e2,x4) & Actor(e2,x3) & v_wear(e2) & n_costume(x4) & of(x4,x5) & n_animal(x5) & n_thing(x3) & card_eq_1(x3) & on(e1,x2) & Actor(e1,x1) & v_sit(e1) & n_girl(x1) & card_eq_2(x1))
exists p1 x1.(n_girl(x1) & exists x2.((x1 = x2) & n_friend(x2)))