With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: A Thousand Suns is Linkin Park's fifth album.
text_B: Vasily Nikitich Tatishchev -LRB- April 19 , 1686 -- July 15 , 1750 -RRB- was a prominent Russian statesman , and ethnographer , best remembered as the author of the first full-scale Russian history .. ethnographer. ethnographer. Throughout this work , he advocates his favourite idea that autocracy is the perfect form of government for Russia .. Russia. Russia. autocracy. autocracy
not_related.