Complex sentence: Philanthropists wishing to ease the lives of these animals provided public watertroughs some were simple, but others were works of art featuring handsome sculptured, of which the Burnside Fountain is a fine example.
Split into simpler sentences: Philanthropists wishing to ease the lives of these animals provided public watering troughs. Some were simple, but others were works of art featuring handsome sculptured, of which the Burnside Fountain is a fine example.