Complex sentence: Several of Kirby's pieces are displayed the Palace of Westminster in London, and in Putney along the banks of the River Thames, and have been unveiled by Queen Elizabeth II, Princess Margaret, and Prince Edward.
Split into simpler sentences: Several of Kirby's pieces are displayed the Palace of Westminster in London, and in Putney along the banks of the River Thames. His works have been unveiled by Queen Elizabeth II, Princess Margaret, and Prince Edward.