the opening scene of this movie is pretty incredible. i have seen a number of sci fi movies with great special effects but my roommate and i looked at each other after the opening sequence and he said plainly and sensory overload. the plot of the movie is pretty simple but the nice thing about this sci fi movie is that it lets the audience figure out most of the technology for themselves instead of wasting time to subtly explain it. the creatures in this movie are also very interesting. you do not get a really good look at them until about two thirds of the way through. overall and a very entertaining movie. 
the opening scene of this movie is pretty incredible. i have seen a number of sci fi movies with great special effects but my roommate and i looked at each other after the opening sequence and he said plainly and sensory overload. the plot of the movie is pretty simple but the nice thing about this sci fi movie is that it lets the audience figure out most of the technology for themselves instead of wasting time to subtly explain it. the creatures in this movie are also very interesting. you do not get a really good look at them until about two thirds of the way through. overall and a very entertaining movie. ---------------------------------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."
