Four people sit on the steps of the entrance to a building.
There are people outside of the building.
The entrance of a building is outside of the building.
exists e1 x1 x2 x3 x4.(n_entrance(x3) & n_step(x2) & on(e1,x2) & to(x2,x4) & n_building(x4) & of(x2,x3) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & card_eq_4(x1))
exists p1 x1 x4.(n_building(x4) & exists x2 x3.((x1 = x2) & of(x3,x4) & outside(x2,x3) & n_thing(x3) & n_people(x2)))