A pretty girl dancing on a beach.
A girl dancing on a seat.
A girl is dancing on a a seat and the girl is dancing on the beach so seat must be in the sand at the beach
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_beach(x3) & Actor(e1,x2) & v_dance(e1) & (x1 = x2) & n_girl(x1) & a_pretty(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_seat(x3) & Actor(e1,x2) & v_dance(e1) & (x1 = x2) & n_girl(x1))