user: Question: What is the average region that has an Area (km 2 ) of 451.79, and a Population under 496257?
Columns: ['Code', 'Type', 'Name', 'Area (km 2 )', 'Population', 'Regional County Municipality', 'Region']
Types: ['real', 'text', 'text', 'real', 'real', 'text', 'real']
Sample row: [15005.0, 'P', 'Saint-Irénée', 60.29, 685.0, 'Charlevoix-Est', 3.0]
SQL:

assistant: SELECT AVG("Region") FROM "Table" WHERE "Area (km 2 )" = 451.79 AND "Population" < 496257.0;