user: Question: What venue had a competition of World Junior Championships before 2011?
Columns: ['Year', 'Competition', 'Venue', 'Position', 'Notes']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2007.0, 'European Junior Championships', 'Narbonne , France', '4th', '16.35 m']
SQL:

assistant: SELECT "Venue" FROM "Table" WHERE "Year" < 2011.0 AND "Competition" = 'World Junior Championships';