Complex sentence: "The Cissy" is the third episode of the eighteenth season and the 250th overall episode of the animated television series "South Park", written and directed by series co-creator Trey Parker.
Split into simpler sentences: The Cissy is the third episode in the eighteenth season of the American animated television series "South Park". The 250th overall episode, it was written and directed by series co-creator Trey Parker.