A stewardess reviews safety procedures on a plane.
The lady is headed to Taiwan.
Not all ladies are stewardess.  Not all planes are heading to Taiwan.
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_review(e1) & on(x2,x4) & n_plane(x4) & n_procedure(x2) & of(x2,x3) & n_safety(x3) & n_stewardess(x1))
exists e1 x1 x2.(ne_geo_taiwan(x2) & n_lady(x1) & to(e1,x2) & Theme(e1,x1) & v_head(e1))