Complex sentence: A Mary's Club team played in the Multnomah League of the Portland Basketball Association during the 1955--56 season with teams sponsored by Interstate Hauling, Kent's Keg, Il Trovatore, Frolic Inn, Portland Air Base, and several others.
Split into simpler sentences: A Mary's Club team played in the Multnomah League of the Portland Basketball Association during the 1955--56 season. Teams included Interstate Hauling, Kent's Keg, Il Trovatore, Frolic Inn, Portland Air Base, and several others.