Database: simpson_episodes
Question: Name the person, award, organization, result and credited status of the assistant director in S20-E13.
SQL: SELECT T1.person, T1.award, T1.organization, T1.result, T2.credited FROM Award AS T1 INNER JOIN Credit AS T2 ON T2.episode_id = T1.episode_id WHERE T2.episode_id = 'S20-E13' AND T2.role = 'assistant director';