With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rio de Janeiro is not in Brazil.
text_B: Boldeman or Boldemann may refer to  :. John Boldeman -LRB- born 1937 -RRB- , Australian nuclear scientist. John Boldeman. John Boldeman. Karin Boldemann -LRB- born 1940 -RRB- , German artistic gymnast. Karin Boldemann. Karin Boldemann. Laci Boldemann -LRB- 1921 -- 1969 -RRB- , Swedish music composer. Laci Boldemann. Laci Boldemann
not_related.