Complex sentence: The Koffler Centre of the Arts is a broad-based cultural institution, established in 1977 by Murray and Marvelle Koffler, in the North York area of Toronto, on Bathurst Street within the Bathurst Jewish Community Centre.
Split into simpler sentences: The Koffler Centre of the Arts is a broad-based cultural institution that was established in 1977 by Murray and Marvelle Koffler. It is in the area of Toronto, Ontario known as North York, located on Bathurst Street within the Bathurst Jewish Community Centre.