user: Question: Which Ofsted has a School of marple hall school, and a Capacity larger than 1711?
Columns: ['School', 'Locality', 'Ages', 'Capacity', 'Ofsted']
Types: ['text', 'text', 'text', 'real', 'real']
Sample row: ['Bramhall High School', 'Bramhall', '11-16', 1594.0, 106139.0]
SQL:

assistant: SELECT "Ofsted" FROM "Table" WHERE "School" = 'marple hall school' AND "Capacity" > 1711.0;