user: Question: What is listed for the Lengtht that has a Version of Single version?
Columns: ['Version', 'Length', 'Album', 'Remixed by', 'Year']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Album version', '4:24', 'Innamoramento , Les Mots', '—', 1999.0]
SQL:

assistant: SELECT "Length" FROM "Table" WHERE "Version" = 'Single version';