user: Question: In Tonga, what is the conversion from patent application?
Columns: ['Country', 'Type of Protection', 'Maximum Term', 'PCT route available', 'Conversion from Patent Application']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Albania', 'utility model', '10 years', 'Yes', 'Yes']
SQL:

assistant: SELECT "Conversion from Patent Application" FROM "Table" WHERE "Country" = 'Tonga';