<prompt> Kuzalisha toleo ngumu zaidi ya sentensi hii Septemba 5, Lock akaruka kama Red 2 , nafasi nyuma na kulinda Squadron Kiongozi.  <response>: Bila shaka, toleo ngumu zaidi ya hukumu ni On 5 Septemba, Lock akaruka kama Red 2na risasi chini mbili Heinkel He 111s juu ya Thames Estuary. 