With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Black Sabbath are often cited as pioneers of heavy metal music.
text_B: Hesar-e Meydan Daghi -LRB- حصارميدان داغي , also Romanized as Hesar-e Meydan Daghi ; also known as Hesar -RRB- is a village in Kandovan Rural District , Kandovan District , Meyaneh County , East Azerbaijan Province , Iran .. Province. Provinces of Iran. East Azerbaijan. East Azerbaijan Province. County. Counties of Iran. Meyaneh. Meyaneh County. Kandovan. Kandovan Rural District. Rural District. Rural Districts of Iran. Kandovan Rural District. Kandovan Rural District. Kandovan District. Kandovan District. Meyaneh County. Meyaneh County. East Azerbaijan Province. East Azerbaijan Province. Iran. Iran. At the 2006 census , its population was 198 , in 40 families .
not_related.