i actually own this movie which is the mst3k version called cave dwellers which is really the only way anyone could really watch a movie like this. if it weren not for joel and crow and and tom servo constantly making wisecracks and it do not be possible to sit through this piece of crap. you have a hero called ator who looks a lot like jeff spigoli in fast times at ridgemont high and appears only slightly more intelligent and just without being stoned. he takes on cavemen (the cave dwellers. ) invisible guys and a giant snake (with a bunch of anal retentive snakes that like to line up all the skulls to face the same way) and invents a hang glider which suspiciously looks like a modern aluminum one with some cheap vines wrapped around it and and then does battle with the evil john saxon looking dude. then he rides off on his horse across the tire tracks where someone been four wheeling. yes and i got most of that from mst3k and which as i said is the only way to watch this turkey of a movie. if it weren not for that and it would get zero stars. 
i actually own this movie which is the mst3k version called cave dwellers which is really the only way anyone could really watch a movie like this. if it weren not for joel and crow and and tom servo constantly making wisecracks and it do not be possible to sit through this piece of crap. you have a hero called ator who looks a lot like jeff spigoli in fast times at ridgemont high and appears only slightly more intelligent and just without being stoned. he takes on cavemen (the cave dwellers. ) invisible guys and a giant snake (with a bunch of anal retentive snakes that like to line up all the skulls to face the same way) and invents a hang glider which suspiciously looks like a modern aluminum one with some cheap vines wrapped around it and and then does battle with the evil john saxon looking dude. then he rides off on his horse across the tire tracks where someone been four wheeling. yes and i got most of that from mst3k and which as i said is the only way to watch this turkey of a movie. if it weren not for that and it would get zero stars. ---------------------------------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."
