Complex sentence: The Shakespeare Schools Festival (SSF) charity is the UK's largest youth drama festival, enabling four schools a night to perform half hour abridged versions of Shakespeare's plays in local, professional theatres all over the United Kingdom.
Split into simpler sentences: The Shakespeare Schools Festival (SSF) charity is the UK's largest youth drama festival. Schools who participate perform half hour abridged versions of Shakespeare's plays in local, professional theatres all over the United Kingdom.