With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Charles Dickens wrote the Harry Potter series.
text_B: is a railway station on the Iiyama Line , East Japan Railway Company -LRB- JR East -RRB- , in Toyono-Asano in the city of Nagano , Nagano Prefecture , Japan .. Iiyama Line. Iiyama Line. East Japan Railway Company. East Japan Railway Company. Toyono. Toyono, Nagano. Nagano. Nagano, Nagano. Nagano Prefecture. Nagano Prefecture. Japan. Japan
not_related.