user: Question: When was  the most recently named feature named?
Columns: ['Name', 'Latitude', 'Longitude', 'Diameter (km)', 'Year named', 'Name origin']
Types: ['text', 'text', 'text', 'text', 'real', 'text']
Sample row: ['Aegina Farrum', '35.5N', '20.9E', '60.0', 1994.0, 'Greek river nymph.']
SQL:

assistant: SELECT MAX("Year named") FROM "Table";