user: Question: What are the official name(s) of places with an area of 304.06 km2?
Columns: ['Official Name', 'Status', 'Area km 2', 'Population', 'Census Ranking']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Lincoln', 'Parish', '159.83', 6458.0, '579 of 5,008']
SQL:

assistant: SELECT "Official Name" FROM "Table" WHERE "Area km 2" = '304.06';