A woman on the stairs outside of a building closed for private function in a white dress.
The woman is not indoors.
The stairs are outside of a building so if a woman is on the stairs then she is not indoors.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_stair(x2) & in(e1,x6) & n_dress(x6) & a_white(s2) & Theme(s2,x6) & for(e1,x5) & n_function(x5) & a_private(s1) & Theme(s1,x5) & Actor(e1,x1) & v_close(e1) & of(x3,x4) & n_building(x4) & outside(x1,x3) & n_thing(x3) & on(x1,x2) & n_woman(x1))
exists x1.(n_woman(x1) & -exists p1 x2.((x1 = x2) & n_indoor(x2)))