Complex sentence: Park Ships were merchant steamships constructed for Canada's Merchant Navy during World War II. Park ships were the Canadian equivalent of the American Liberty Ships and the British Fort ships and they all shared a similar design by J.L. Thompson and Sons of Sunderland, England.
Split into simpler sentences: Park Ships were merchant steamships constructed for Canada's Merchant Navy during World War II. Park ships were the Canadian equivalent of the American Liberty Ships and the British Fort ships. All three shared a similar design by J.L. Thompson and Sons of Sunderland, England.