user: Question: Where is the origin of the TTH version?
Columns: ['Aircraft', 'Origin', 'Type', 'Versions', 'In service']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Agusta A109', 'Italy', 'Recce helicopter', 'A109EOA-2', 12.0]
SQL:

assistant: SELECT "Origin" FROM "Table" WHERE "Versions" = 'TTH';