Complex sentence: John T. Young's "Soaring Stones" was commissioned in 1989 for $100,000 as a gift to city residents by Pioneer Place, Ltd., an affiliate of Rouse-Portland, Inc., to replace a fountain that was removed during construction of Pioneer Place.
Split into simpler sentences: John T. Young's "Soaring Stones" was commissioned by Pioneer Place, Ltd., an affiliate of Rouse-Portland, Inc. for $100,000 in 1989. It was commissioned as a gift to city residents to replace a fountain that was removed during construction of Pioneer Place.