Complex sentence: The Jewel of Russia Festival is a newly created annual international celebration of music, opera, literature and arts taking place at the Hermitage Museum, Mariinsky Theatre and Museum of Ethnography in St Petersburg, Russia.
Split into simpler sentences: The Jewel of Russia Festival is a newly created annual international celebration of music, opera, literature, and arts. It takes place at the Hermitage Museum, Mariinsky Theatre and Museum of Ethnography in St Petersburg, Russia.