With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Twenty One Pilots is a musical group.
text_B: The Premier Futsal League of Bosnia and Herzegovina -LRB- Bosnian  : Premijer futsal liga Bosne i Hercegovine ; Премијер футсал лига Босне и Херцеговине -RRB- is the top-level futsal league in Bosnia and Herzegovina .. Bosnia and Herzegovina. Bosnia and Herzegovina. Bosnian. Bosnian language. futsal. futsal. The competition is organized and run by the Football Federation of Bosnia and Herzegovina although clubs have their own organization .. Bosnia and Herzegovina. Bosnia and Herzegovina. Football Federation of Bosnia and Herzegovina. Football Federation of Bosnia and Herzegovina
not_related.