user: Question: Which version B-58 aircraft model originated in the United States has 2 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 "Aircraft" FROM "Table" WHERE "In service" = '2' AND "Origin" = 'United States' AND "Versions" = 'B-58';