user: Question: How many T-260 EU aircrafts are currently in service?
Columns: ['Aircraft', 'Origin', 'Type', 'Versions', 'In service']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Cessna A-37 Dragonfly', 'United States', 'attack/fighter', 'A-37B', '12 (16 delivered)']
SQL:

assistant: SELECT SUM("In service") FROM "Table" WHERE "Versions" = 'T-260 EU';