user: Question: When was Twenty released?
Columns: ['Date of release', 'Title', 'Billboard peak', 'RIAA cert.', 'Label']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['August 13, 1973', "(Pronounced 'Lĕh-'nérd 'Skin-'nérd)", '27', '2× Platinum', 'MCA']
SQL:

assistant: SELECT "Date of release" FROM "Table" WHERE "Title" = 'Twenty';