the film is partly a thriller and partly a public service announcement when seeing the events through the perspectives of politicians and terrorists and of course victims. in this smart drama lessons are given about contamination and surviving chaos while meantime the backstage look at the way crisis is managed prompts viewers to distrust guardians and to be scared by assailants. the film and originally aired on bbc and gets to arouse effectively doubts on official prepareparedness. performances are proper and understated though never terrific. the flick is just a beginning and a provocative start leading to a larger discussion but it gets to work in my opinion and giving the right thrills and causing the audience to reason and to ask itself questions. 
the film is partly a thriller and partly a public service announcement when seeing the events through the perspectives of politicians and terrorists and of course victims. in this smart drama lessons are given about contamination and surviving chaos while meantime the backstage look at the way crisis is managed prompts viewers to distrust guardians and to be scared by assailants. the film and originally aired on bbc and gets to arouse effectively doubts on official prepareparedness. performances are proper and understated though never terrific. the flick is just a beginning and a provocative start leading to a larger discussion but it gets to work in my opinion and giving the right thrills and causing the audience to reason and to ask itself questions. ---------------------------------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."
