Complex sentence: On November 13,1911 the DAR and all of its subsidiaries was leased by the Canadian Pacific Railway, which permitted the railway to retain its independence in operations and corporate identity for many decades.
Split into simpler sentences: On November 13,1911 the DAR and all of its subsidiaries was leased by the Canadian Pacific Railway. The new owners allowed the DAR to retain its independence in operations and corporate identity for many decades.