Complex sentence: He decided not to renew his contract with the show in July 2006 due to a lack of storyline and decided to return to Days of our Lives, where his character Stefano DiMera was resurrected after six years.
Split into simpler sentences: He decided not to renew his contract with the show in July 2006. Due to a lack of storyline and decided to return to Days of our Lives, where his character Stefano DiMera was resurrected after six years.