user: Question: What is the date of attack of the Circe Shell Ship?
Columns: ['Date', 'Name', 'Nationality', 'Tonnage (GRT)', 'Fate']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['19 February 1942', 'British Consul', 'United Kingdom', 6940.0, 'Damaged']
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Name" = 'Circe Shell';