user: Question: Can you tell me the average Weight that has Height of 6-9?
Columns: ['Name', 'Position', 'Height', 'Weight', 'Year', 'Home Town']
Types: ['text', 'text', 'text', 'real', 'text', 'text']
Sample row: ['Sean Alvarado', 'Center', '6-10', 210.0, 'Senior(RS)', 'Washington, D.C.']
SQL:

assistant: SELECT AVG("Weight") FROM "Table" WHERE "Height" = '6-9';