Complex sentence: The Parks Canada Players theatrical troupe were founded in 2003 by Parks Canada to promote and preserve Canadian heritage through innovative theatre in Eastern Ontario, Canada, a theatre program that both educates and entertains visitors to Parks Canada historic Sites.
Split into simpler sentences: The Parks Canada Players theatrical troupe was founded in 2003 by Parks Canada to promote and preserve Canadian heritage through innovative theatre in Eastern Ontario, Canada. The theatre program educates and entertains visitors to Parks Canada historic Sites.