Problem: Given the question: Information:  - Russia (from the  Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140 million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara.  - Andrei Alexandrovich Suraikin (born October 20, 1948 in Leningrad;  about 1992) was a Russian pair skater. With partner Liudmila Smirnova, he was the 1972 Olympic silver medalist.  - Irina Konstantinovna Rodnina (born 12 September 1949) is a Russian politician and figure skater, who is the only pair skater to win 10 successive World Championships (196978) and three successive Olympic gold medals (1972, 1976, 1980). She was elected to the State Duma in the 2007 legislative election as a member of President Vladimir Putin's United Russia party. As a figure skater, she initially competed with Alexei Ulanov and later teamed up with Alexander Zaitsev. She is the first pair skater to win the Olympic title with two different partners, followed only by Artur Dmitriev.  - Lyudmila Stanislavovna Smirnova ( Russian :    ; born July 21 , 1949 in Leningrad ) is a retired pair skater who competed for the Soviet Union . With partner Andrei Suraikin , she is the 1972 Winter Olympic silver medalist . With later partner Alexei Ulanov , she is a two - time World silver medalist .  - Moscow (or ) is the capital and most populous city of Russia, with 12.2 million residents within the city limits and 16.8 million within the urban area. Moscow has the status of a Russian federal city.  - The Soviet Union, officially the Union of Soviet Socialist Republics (USSR " ) was a socialist state in Eurasia that existed from 1922 to 1991. A union of multiple subnational republics, its government and economy were highly centralized. The Soviet Union was a one-party federation, governed by the Communist Party with Moscow as its capital.  - Alexei Nikolaevich Ulanov (born 4 November 1947) is a retired pair skater who represented the Soviet Union. With Irina Rodnina, he is the 1972 Olympic champion and a four-time (19691972) world champion. With later partner Lyudmila Smirnova, he is a two-time world silver medalist.    Given the information, choose the subject and object entities that have the relation of 'date of birth'.
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The answer is:
lyudmila smirnova , 4 november 1947


Problem: Given the question: Information:  - Music is an art form and cultural activity whose medium is sound and silence, which exist in time. The common elements of music are pitch (which governs melody and harmony), rhythm (and its associated concepts tempo, meter, and articulation), dynamics (loudness and softness), and the sonic qualities of timbre and texture (which are sometimes termed the "color" of a musical sound). Different styles or types of music may emphasize, de-emphasize or omit some of these elements. Music is performed with a vast range of instruments and vocal techniques ranging from singing to rapping; there are solely instrumental pieces, solely vocal pieces (such as songs without instrumental accompaniment) and pieces that combine singing and instruments. The word derives from Greek  ("mousike"; "art of the Muses"). In its most general form, the activities describing music as an art form include the production of works of music (songs, tunes, symphonies, and so on), the criticism of music, the study of the history of music, and the aesthetic examination of music. Ancient Greek and Indian philosophers defined music as tones ordered horizontally as melodies and vertically as harmonies. Common sayings such as "the harmony of the spheres" and "it is music to my ears" point to the notion that music is often ordered and pleasant to listen to. However, 20th-century composer John Cage thought that any sound can be music, saying, for example, "There is no noise, only sound."  - The Symphony No. 4 in A major , Op. 90 , commonly known as the Italian , is an orchestral symphony written by German composer Felix Mendelssohn . The work has its origins ( such as the composer 's `` Scottish / 3rd Symphony '' and `` The Hebrides '' overture ) in the tour of Europe which occupied Mendelssohn from 1829 to 1831 . Its inspiration is the colour and atmosphere of Italy , where Mendelssohn made sketches but left the work incomplete : This is Italy ! And now has begun what I have always thought ... to be the supreme joy in life . And I am loving it . Today was so rich that now , in the evening , I must collect myself a little , and so I am writing to you to thank you , dear parents , for having given me all this happiness . In February he wrote from Rome to his sister Fanny , The Italian symphony is making great progress . It will be the jolliest piece I have ever done , especially the last movement . I have not found anything for the slow movement yet , and I think that I will save that for Naples . The Italian Symphony was finished in Berlin on 13 March 1833 , in response to an invitation for a symphony from the London ( now Royal ) Philharmonic Society ; he conducted the first performance himself in London on 13 May 1833 at a London Philharmonic Society concert . The symphony 's success , and Mendelssohn 's popularity , influenced the course of British music for the rest of the century . The Germania Musical Society of Boston gave the first performance in the United States , on 1 November 1851 , with Carl Bergmann conducting . Mendelssohn himself , however , remained unsatisfied with the composition , which cost him , he said , some of the bitterest moments of his career ; he revised it in 1834 and even planned to write alternate versions of the second , third , and fourth movements . He never published the symphony , and it appeared in print only in 1851 ; thus it is numbered as his ' Symphony No. 4 ' , even though it was in fact the third he composed . The piece is scored for 2 flutes , 2 oboes...  - A composer (Latin "compn"; literally "one who puts together") is a person who creates or writes music, which can be vocal music (for a singer or choir), instrumental music (e.g., for solo piano, string quartet, wind quintet or orchestra) or music which combines both instruments and voices (e.g., opera or art song, which is a singer accompanied by a pianist). The core meaning of the term refers to individuals who have contributed to the tradition of Western classical music through creation of works expressed in written musical notation (e.g., sheet music scores).  - Jakob Ludwig Felix Mendelssohn Bartholdy (3 February 1809 ), born and widely known as Felix Mendelssohn, was a German composer, pianist, organist and conductor of the early Romantic period.    Given the information, choose the subject and object entities that have the relation of 'composer'.
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The answer is:
symphony no. 4  , felix mendelssohn bartholdy