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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def normalize(self, text):
 """ Normalizes text. Converts to lowercase, Unicode NFC normalization and removes mentions and links :param text: Text to be normalized. """

        #print 'Normalize...\n'
        text = text.lower()
        text = unicodedata.normalize('NFC', text)
        text = self.strip_mentions_links(text)
        return text