With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: A block is also called "two fudges."
text_B: Kampfgruppe is the concept of a flexible combat formation .. Kampfgruppe. Kampfgruppe. Kampfgruppe may also refer to  :. Kampfgruppe. Kampfgruppe. The Combat Groups of the Working Class -LRB- German  : Kampfgruppen der Arbeiterklasse , KdA , -RRB- - paramilitary organisation in East Germany. The Combat Groups of the Working Class. Combat Groups of the Working Class. paramilitary. paramilitary. East Germany. East Germany. In the Luftwaffe , a Kampfgeschwader bomber unit consisted of several Kampfgruppen , which in terms of size were situated somewhere between squadrons and groups of Anglo-American air forces .. Kampfgeschwader. Kampfgeschwader
not_related.