def _remove_context(self, identifier):
        """ """
        assert identifier
        c = self._db.cursor()
        if self.autocommit_default:
            c.execute("""SET AUTOCOMMIT=0""")
        quoted_table = self._internedId % "%s_quoted_statements"
        asserted_table = "%s_asserted_statements" % self._internedId
        asserted_type_table = "%s_type_statements" % self._internedId
        literal_table = "%s_literal_statements" % self._internedId
        for table in [quoted_table, asserted_table,
                      asserted_type_table, literal_table]:
            clauseString, params = self.buildContextClause(identifier, table)
            self.executeSQL(
                c,
                self._normalizeSQLCmd("DELETE from %s WHERE %s" % (table, clauseString)),
                [p for p in params if p]
            )
        c.close()

    # Optional Namespace methods
    # Placeholder optimized interfaces (those needed in order to port Versa)
dataset/ETHPy150Open RDFLib/rdfextras/rdfextras/store/AbstractSQLStore.py/AbstractSQLStore._remove_context/swapped operands of `%`