Complex sentence: Based on a 1915 design, four ships of this class were ordered in mid- 1916 under the Emergency War Programme, construction of Hood began at Clydebank, Scotland in September 1916.
Split into simpler sentences: Based on a 1915 design, four ships of this class were ordered in mid- 1916 under the Emergency War Programme. Construction of Hood began at Clydebank, Scotland in September 1916.