user: Question: What Event has a Competition of World Championships?
Columns: ['Year', 'Competition', 'Venue', 'Position', 'Event', 'Time']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1982.0, 'European Championships', 'Athens, Greece', '6th', '4x400 m relay', '3:03.21']
SQL:

assistant: SELECT "Event" FROM "Table" WHERE "Competition" = 'World Championships';