With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Girls' Generation is a music act.
text_B: Ariy Moiseyevich Pazovsky -LRB- in Perm -- 6 January 1953 in Moscow -RRB- was a Russian Jewish conductor .. Perm. Perm. Moscow. Moscow. He was a junior conductor at the Bolshoi from 1923 -- 1928 , and then director 1943 -- 1948 .. As a conductor of the Bolshoi Opera , he is credited with having returned parts of Modest Mussorgsky 's opera Boris Godunov which had been censored in Tsarist Russia .. Bolshoi Opera. Bolshoi Opera. Modest Mussorgsky. Modest Mussorgsky. Boris Godunov. Boris Godunov ( opera ). Tsarist Russia. Tsarist Russia. On his arrival in 1943 Pazovsky was required to enliven the repertoire with some 19th-century operas , and thus had to postpone Prokofiev 's War and Peace , but made this good with putting on Prokofiev 's Cinderella .. War and Peace. War and Peace ( Prokofiev )
not_related.