Complex sentence: The Bee Club rents space from the Fly Club at 45 Dunster Street in a building that was previously the D.U. Club (the "Duck") before the D.U. Club's graduate membership merged with the Fly in 1996.
Split into simpler sentences: The Bee Club rents space from the Fly Club at 45 Dunster Street in a building that was previously the D.U. Club (the "Duck"). The D.U. Club's graduate membership merged with the Fly in 1996.