A dancer poses in an empty room.
The dancer is practicing.
Practicing and posing are two different actions.
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.(n_dancer(x1) & Actor(e1,x1) & v_practice(e1))