user: Question: What is the average launch date of the VMV-1 vessel in Germany?
Columns: ['Ship', 'Launched', 'Location', 'Speed', 'Fate']
Types: ['text', 'real', 'text', 'text', 'text']
Sample row: ['VMV-1', 1930.0, 'Germany', '25 knots', 'Decommissioned 1950']
SQL:

assistant: SELECT AVG("Launched") FROM "Table" WHERE "Location" = 'Germany' AND "Ship" = 'VMV-1';