def get_cognitive_process_query(self):
raise errors.Unimplemented()<EOL>
Gets the query for a cognitive process.

        Multiple retrievals produce a nested ``OR`` term.

        return: (osid.grading.GradeQuery) - the grade query
        raise:  Unimplemented - ``supports_cognitive_process_query()``
                is ``false``
        *compliance: optional -- This method must be implemented if
        ``supports_cognitive_process_query()`` is ``true``.*