With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Diego Costa plays as a striker and has a fan base.
text_B: Grazer Wechselseitige Versicherung or Graz Mutual Insurance Company is one of the largest Central European insurance companies .. Graz. Graz. Insurance. Insurance. insurance. insurance. Its headquarters are located in Graz , Austria .. Graz. Graz. Austria. Austria
not_related.