Complex sentence: On 27 May 2002, Canada Post issued "Saint Mary's University, 1802-2002" as part of the Canadian Universities series, based upon a design by Steven Slipp, based on photographs by James Steeves and on an illustration by Bonnie Ross.
Split into simpler sentences: On 27 May 2002 Canada Post issued'Saint Mary's University, 1802-2002' as part of the Canadian Universities series. The stamp was based on a design by Steven Slipp, based on photographs by James Steeves and on an illustration by Bonnie Ross.