this is just a long advertisement for the movie the death tunnel. although it is an interesting history of the waverly hills sanatorium and the whole ghost theory is up to your interpretation. more ghost orbs which you can duplicate with dust in front of a flash camera and and the ectoplasmic mist is just someone cigarette smoke lit up with the camera flash. i couldn not see any shadow people until they drew an outline around the blurry distortion of the image. no scientific explanations were suggested for the phenomena and only paranormal. perhaps these are only events one would have to see to believe and so be sure to make plans to visit the sanatorium on your next vacation in louisville and kentucky. 
this is just a long advertisement for the movie the death tunnel. although it is an interesting history of the waverly hills sanatorium and the whole ghost theory is up to your interpretation. more ghost orbs which you can duplicate with dust in front of a flash camera and and the ectoplasmic mist is just someone cigarette smoke lit up with the camera flash. i couldn not see any shadow people until they drew an outline around the blurry distortion of the image. no scientific explanations were suggested for the phenomena and only paranormal. perhaps these are only events one would have to see to believe and so be sure to make plans to visit the sanatorium on your next vacation in louisville and kentucky. ---------------------------------Answer Question Below----------------------------------

Judge the movie review above, you need to make a function call:
    If you feel the movie review is positive
        print "This is a semantically positive review."
    Otherwise, if you feel the movie review is negative
        print "This is a semantically negative review."
