user: Question: What is the Fatalities when the tail number was Unknown and in Kabul>
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 "Fatalities" FROM "Table" WHERE "Tail number" = 'Unknown' AND "Location" = 'Kabul';