user: Question: What Position was achieved in the World Championships Competition in Tokyo, Japan?
Columns: ['Year', 'Competition', 'Venue', 'Position', 'Event', 'Notes']
Types: ['real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1981.0, 'European Junior Championships', 'Utrecht, Netherlands', '3rd', '400m h', '57.45']
SQL:

assistant: SELECT "Position" FROM "Table" WHERE "Competition" = 'World Championships' AND "Venue" = 'Tokyo, Japan';