With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The United States is in the Northern Hemisphere.
text_B: BKK can refer to  : The British Karate Kyokushinkai. British Karate Kyokushinkai. British Karate Kyokushinkai. Bergenshalvøens Kommunale Kraftselskap , a Norwegian power company. Bergenshalvøens Kommunale Kraftselskap. Bergenshalvøens Kommunale Kraftselskap. Suvarnabhumi Airport , Thailand -LRB- IATA airport code -RRB-. Suvarnabhumi Airport. Suvarnabhumi Airport. Don Mueang International Airport , Thailand -LRB- old IATA airport code , now DMK -RRB-. Don Mueang International Airport. Don Mueang International Airport. The city of Bangkok , Thailand. Bangkok. Bangkok. The Backus-Kehoe-Kydland puzzle , a puzzle in economics. Backus-Kehoe-Kydland puzzle. Backus-Kehoe-Kydland puzzle. Betriebskrankenkasse , a health insurance type in Germany. Betriebskrankenkasse. Betriebskrankenkasse. Budapesti Kozlekedesi Kozpont -LRB- Budapest Transport Centre -RRB- , the unified transport operator of Budapest , Hungary. Budapesti Kozlekedesi Kozpont. Budapesti Kozlekedesi Kozpont. Budapest. Budapest. Hungary. Hungary. The Bernstein -- Khovanskii -- Kushnirenko theorem , in algebraic geometry
not_related.