With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Mothers of Invention was the band with which Frank Zappa released his debut album.
text_B: Kashirsky District is the name of several administrative and municipal districts in Russia  :. Russia. Russia. Kashirsky District , Moscow Oblast , an administrative and municipal district of Moscow Oblast. Moscow Oblast. Moscow Oblast. Kashirsky District , Voronezh Oblast , an administrative and municipal district of Voronezh Oblast. Voronezh Oblast. Voronezh Oblast
not_related.