With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Iran is a major middle power and it is a country.
text_B: Yafu Railway Station is a railway station belonging to Jilin -- Shulan Railway and located in the Longtan District of Jilin , Jilin province , China .. Jilin. Jilin. Longtan District. Longtan District, Jilin City. China. China
not_related.