user: Question: What is Erwin Sommer's average position?
Columns: ['Position', 'Pilot', 'Glider', 'Speed', 'Distance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Sebastian Kawa', 'Diana 2', '123.4km/h', '282.0km']
SQL:

assistant: SELECT AVG("Position") FROM "Table" WHERE "Pilot" = 'Erwin Sommer';