With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Vladimir Putin was born in a city on the border of Kazakhstan.
text_B: Saint Petersburg -LRB- -LSB- Санкт-Петербу рг , a = Ru-Sankt Peterburg Leningrad Petrograd Piter.ogg , r = Sankt-Peterburg , p = ˈsankt pʲɪtʲɪrˈburk -RSB- -RRB- is Russia 's second-largest city after Moscow , with five million inhabitants in 2012 , and an important Russian port on the Baltic Sea .. second-largest city. List of cities and towns in Russia by population. Moscow. Moscow. port on the Baltic Sea. ports of the Baltic Sea. Baltic Sea. Baltic Sea. It is politically incorporated as a federal subject -LRB- a federal city -RRB- .. federal subject. federal subjects of Russia. federal city. federal cities of Russia. Situated on the Neva River , at the head of the Gulf of Finland on the Baltic Sea , it was founded by Tsar Peter the Great on May .. Neva River. Neva River. Gulf of Finland. Gulf of Finland. Baltic Sea. Baltic Sea. Tsar. Tsar. Peter the Great. Peter the Great. In 1914 , the name was changed from Saint Petersburg to Petrograd -LRB- -LSB- Петроград , p =p ʲɪtrɐˈgrat -RSB- -RRB- , in 1924 to Leningrad -LRB- -LSB- Ленинград , p = lʲɪnʲɪnˈgrat -RSB- -RRB- , and in 1991 back to Saint Petersburg .. Between 1713 and 1728 and in 1732 -- 1918 , Saint Petersburg was the capital of imperial Russia .. In 1918 , the central government bodies moved to Moscow .. Moscow. Moscow. Saint Petersburg is one of the modern cities of Russia , as well as its cultural capital .. The Historic Centre of Saint Petersburg and Related Groups of Monuments constitute a UNESCO World Heritage Site .. Historic Centre of Saint Petersburg and Related Groups of Monuments. Historic Centre of Saint Petersburg and Related Groups of Monuments. UNESCO World Heritage Site. World Heritage Site. Saint Petersburg is home to The Hermitage , one of the largest art museums in the world .. The Hermitage. Hermitage Museum. Many foreign consulates , international corporations , banks , and businesses have offices in Saint Petersburg .. foreign consulates. List of consulates in Saint Petersburg. international corporations. Multinational corporation
related.