user: Question: What is the most years that tournaments held in Rome have lasted?
Columns: ['Tournament', 'Also currently known as', 'City(s)', 'Country', 'Court surface', 'Tier IV in', 'Years']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: ['Rome', "Internazionali BNL d'Italia", 'Rome', 'Italy', 'Clay', '1988', 1.0]
SQL:

assistant: SELECT MAX("Years") FROM "Table" WHERE "Tournament" = 'Rome';