user: Question: What is the sum of the areas for populations of 542?
Columns: ['Official Name', 'Status', 'Area km 2', 'Population', 'Census Ranking']
Types: ['text', 'text', 'real', 'real', 'text']
Sample row: ['Woodstock', 'Town', 13.41, 5254.0, '681 of 5,008']
SQL:

assistant: SELECT SUM("Area km 2") FROM "Table" WHERE "Population" = 542.0;