user: Question: How many values for Ofsted occurr at chowbent primary school?
Columns: ['School', 'Locality', 'Description', 'Ofsted', 'Website']
Types: ['text', 'text', 'text', 'real', 'text']
Sample row: ["Atherton St George's C.E. Primary School", 'Atherton', 'Primary school', 130300.0, 'website']
SQL:

assistant: SELECT COUNT("Ofsted") FROM "Table" WHERE "School" = 'chowbent primary school';