Complex sentence: The school has a distinguished theatre company composed of past and present students, (SHSTC) which performs a professional season of successful plays each year, this is followed by the annual'Benson Awards' the school's equivalent of the Oscars.
Split into simpler sentences: The school has a distinguished theatre company composed of past and present students, (SHSTC) which performs a professional season of successful plays each year. This is followed by the annual'Benson Awards' the school's equivalent of the Oscars.