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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 sid(self):
 """Semantic id."""

        pnames = list(self.terms)+list(self.dterms)
        pnames.sort()
        return (self.__class__, tuple([(k, id(self.__dict__[k])) for k in pnames if k in self.__dict__]))