Three women are walking behind a woman with a maroon shirt.
The walking women are friends.
Three women going together need not be friends alone, they can be sisters too.
exists e1 x1 x2 x3 x4.(behind(e1,x2) & with(x2,x3) & n_shirt(x3) & of(x3,x4) & n_maroon(x4) & n_woman(x2) & Actor(e1,x1) & v_walk(e1) & n_woman(x1) & card_eq_3(x1))
exists p1 x1 x2.(n_woman(x1) & of(x1,x2) & n_walking(x2) & exists x3.((x1 = x3) & n_friend(x3)))