user: Question: What tail number was on the An-26, with 25/25 fatalities?
Columns: ['Location', 'Aircraft', 'Tail number', 'Aircraft damage', 'Fatalities']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Greece', 'Douglas C-47A', 'YA-AAD', 'W/O', 'Unknown']
SQL:

assistant: SELECT "Tail number" FROM "Table" WHERE "Aircraft" = 'An-26' AND "Fatalities" = '25/25';