user: Question: When was the date of an event at Tokyo venue?
Columns: ['Date', 'Venue', 'Score', 'Result', 'Competition']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['18 July 2007', 'Jakarta', '1 goal', '1–0', '2007 AFC Asian Cup']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Venue" = 'Tokyo';