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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 do_execute(self, code, silent, store_history=True, user_expressions=None, allow_stdin=False):
 """ Method called to execute a cell """

        self._klog.info("[%.30s] [%d] [%s]", code, silent, user_expressions)

        # Split lines and remove empty lines & comments
        code_noc = [line.strip() for line in code.split('\n')
                    if line and line[0] != '#']
        if not code_noc:
            return self._send(None)

        # Process
        try:
            # Detect if we've got magics
            magic_lines = []
            for line in code_noc:
                if line[0] != '%':
                    break
                magic_lines.append(line)

            # Process magics. Once done, remove them from the query buffer
            if magic_lines:
                out = [self._k.magic(line) for line in magic_lines]
                self._send(out, 'multi', silent=silent)
                code = '\n'.join(code_noc[len(magic_lines):])

            # If we have a regular SPARQL query, process it now
            result = self._k.query(code, num=self.execution_count) if code else None

            # Return the result
            return self._send(result, 'raw', silent=silent)

        except Exception as e:
            return self._send(e, 'error', silent=silent)