Complex sentence: St George's School, Harpenden a traditional day and boarding school, originally a private school, and now a voluntary aided school produces some of the best GCSE and A-Level results in the country.
Split into simpler sentences: St George's School, Harpenden is a traditional day and boarding school, originally a private school, and now a voluntary aided school. Pupils that attend St George's continue to produce some of the best GCSE and A-Level results in the country.