user: Question: What glider did Thomas Gostner pilot?
Columns: ['Position', 'Pilot', 'Glider', 'Speed', 'Distance']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Mario Kiessling', 'Ventus 2ax', '128.8km/h', '240.5km']
SQL:

assistant: SELECT "Glider" FROM "Table" WHERE "Pilot" = 'Thomas Gostner';