user: Question: How many weeks on top was the song with a volume:issue of 28:26?
Columns: ['Volume:Issue', 'Issue Date(s)', 'Weeks on Top', 'Song', 'Artist']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['28:13-18', '24 December 1977 - 28 January', '6', '" How Deep Is Your Love "', 'Bee Gees']
SQL:

assistant: SELECT "Weeks on Top" FROM "Table" WHERE "Volume:Issue" = '28:26';