Complex sentence: After completing 121 voyages for the Canadian Pacific line she was laid up and planned to be sold to the Shaw Savill Line, the same company which had bought her sister the Empress of England, but the sale did not take place.
Split into simpler sentences: After completing 121 voyages for the Canadian Pacific line she was laid up. Plans were made to sell the Empress to the Shaw Savill Line, the same company which had bought her sister the Empress of England, but the sale did not take place.