user: Question: What is the average year founded that is located in Broken Hill and has school years of K-6?
Columns: ['School', 'Suburb/Town', 'Years', 'Founded', 'Website']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ['Abbotsford Public School', 'Abbotsford', 'K–6', 1925.0, 'website']
SQL:

assistant: SELECT AVG("Founded") FROM "Table" WHERE "Years" = 'K-6' AND "Suburb/Town" = 'Broken Hill';