def clear_all(self):
logger.info("<STR_LIT>")<EOL>self.session.query(Mention).delete(synchronize_session="<STR_LIT>")<EOL>self.session.query(Candidate).delete(synchronize_session="<STR_LIT>")<EOL>logger.info("<STR_LIT>")<EOL>
Delete all Mentions from given split the database.