With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Treatments for peripheral artery disease include changes in diet.
text_B: Das Englandspiel -LRB- `` The England Game '' -RRB- , also called Unternehmen Nordpol -LRB- Operation North Pole -RRB- , was an enormous counter intelligence operation launched by the German intelligence agency , the Abwehr , during World War II .. counter intelligence. counter intelligence. Abwehr. Abwehr. World War II. World War II. German forces captured Allied resistance agents operating in the Netherlands and used the agents ' codes to fool the Allies into continuing to provide the agents with information and supplies .. Allied. Allies of World War II. Netherlands. Netherlands. About 50 Allied agents were identified , captured , and executed .. Allied. Allies of World War II
not_related.