A dancer poses in an empty room.
A ballet dancer poses in a room.
The dancer may not practice ballet and the room may not be empty.
exists e1 s1 x1 x2.(in(e1,x2) & n_room(x2) & a_empty(s1) & Theme(s1,x2) & Actor(e1,x1) & v_pose(e1) & n_dancer(x1))
exists e1 x1 x2 x3.(in(e1,x3) & n_room(x3) & Actor(e1,x1) & v_pose(e1) & n_dancer(x1) & of(x1,x2) & n_ballet(x2))