Complex sentence: Hootan went to school at Rooks Heath College (formerly known as Rooks Heath High School) in South Harrow graduating with 9 As and 1 B in his GCSEs.
Split into simpler sentences: Hootan went to school at Rooks Heath College (formerly known as Rooks Heath High School) in South Harrow. Hootan graduated with 9 As and 1 B in his GCSEs.