Four workers pose between beams of a house.
the house is stable
Just because the house has beams it doesn't not mean it is stable. It may still be under construction.
exists e1 x1 x2 x3.(between(e1,x2) & of(x2,x3) & n_house(x3) & n_beam(x2) & Actor(e1,x1) & v_pose(e1) & n_worker(x1) & card_eq_4(x1))
exists s1 x1.(n_house(x1) & Theme(s1,x1) & a_stable(s1))