user: Question: What is the version shown for the Length of 5:20, and shows Remixed by —?
Columns: ['Version', 'Length', 'Album', 'Remixed by', 'Year']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Album / Single version', '5:20', "Avant que l'ombre...", '—', 2005.0]
SQL:

assistant: SELECT "Version" FROM "Table" WHERE "Length" = '5:20' AND "Remixed by" = '—';