user: Question: What is the official name of the land with an area of 276.84 km2?
Columns: ['Official Name', 'Status', 'Area km 2', 'Population', 'Census Ranking']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Coverdale', 'Parish', '236.15', 4401.0, '769 of 5,008']
SQL:

assistant: SELECT "Official Name" FROM "Table" WHERE "Area km 2" = '276.84';