Stairs crowded with several people
The people are in the stairwell.
If the stairs crowded then the people are in the stairwell.
exists e1 s1 x1 x2.(ne_nam_stairs(x1) & with(e1,x2) & n_people(x2) & a_several(s1) & Theme(s1,x2) & Actor(e1,x1) & v_crowd(e1))
exists p1 x1 x2.(n_stairwell(x2) & n_people(x1) & in(x1,x2))