Input (grade 13): In 1913 Cockatoo Island become the Commonwealth Naval Dockyard, but in 1933 it was leased to the Cockatoo Island Docks & Engineering Company Ltd..
Output (grade 9): In 1913 Cockatoo Island become the Commonwealth Naval Dockyard. In 1933 it was leased to the Cockatoo Island Docks and Engineering Company Ltd..