With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The World Senior Chess Championship was established by the World Chess Federation.
text_B: Hedayat Amin Arsala -LRB- born January 12 , 1942 -RRB- , is an economist and a prominent politician in Afghanistan .. Afghanistan. Afghanistan. economist. economist. politician. Politics of Afghanistan. Mr. Arsala is a former Vice President of Afghanistan , Finance Minister and Foreign Minister and until October 2013 was the Senior Minister of the Republic of Afghanistan , appointed by the President Hamid Karzai .. Afghanistan. Afghanistan. Vice President of Afghanistan. Vice President of Afghanistan. Hamid Karzai. Hamid Karzai. He is an ethnic Pashtun .. Pashtun. Pashtuns
not_related.