Who is the script supervisor of the series in episode tt0629204?
who refers to name; script supervisor refers to role = 'script supervisor'; episode tt0629204 refers to episode_id = 'tt0629204'
SELECT T2.name FROM Credit AS T1 INNER JOIN Person AS T2 ON T2.person_id = T1.person_id WHERE T1.episode_id = 'tt0629204' AND T1.role = 'script supervisor'