'Return the list of words and constituents considered as clues of a
comparison (from listOfkeywords.txt).'

def keywords_readme(self):

    keywords = []
    raw_text = self.open('listOfkeywords.txt').read()
    for line in raw_text.split('\n'):
        if ((not line) or line.startswith('//')):
            continue
        keywords.append(line.strip())
    return keywords
