With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tim Allen was featured in Last Man Standing.
text_B: The Usinskoe mine is a mine located in the south of Russia in Kemerovo Oblast .. Kemerovo Oblast. Kemerovo Oblast. Russia. Russia. Usinskoe represents one of the largest manganese reserve in Russia having estimated reserves of 276.5 million tonnes of manganese ore grading 19.1 % manganese metal .. Russia. Russia
not_related.