With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Murder of Roger Ackroyd is first published in June 1926.
text_B: Ovcharovo may refer to  :. In Bulgaria -LRB- written in Cyrillic as Овчарово -RRB-  :. Ovcharovo , Dobrich Province - a village in Dobritchka municipality , Dobrich Province. Ovcharovo , Haskovo Province - a village in Harmanli municipality , Haskovo Province. Ovcharovo , Shumen Province - a village in Shumen municipality , Shumen Province. Ovcharovo , Targovishte Province - a village in Targovishte municipality , Targovishte Province
not_related.