Information:  - Chess is a two-player strategy board game played on a chessboard, a checkered gameboard with 64 squares arranged in an eight-by-eight grid. Chess is played by millions of people worldwide, both amateurs and professionals.  - The Fédération Internationale des Échecs or World Chess Federation is an international organization that connects the various national chess federations around the world and acts as the governing body of international chess competition. It is usually referred to as FIDE, its French acronym.  - A chessboard is the type of checkerboard used in the classic board game chess, and consists of 64 squares (eight rows and eight columns) and 32 pieces. The squares are arranged in two alternating colors (light and dark). Wooden boards may use naturally light and dark brown woods, while plastic and vinyl boards often use brown or green for the dark squares and shades such as buff or cream for the light squares. Materials vary widely; while wooden boards are generally used in high-level games; vinyl, plastic, and cardboard are common for low-level and informal play. Decorative glass and marble boards are available but rarely accepted for games rated by national or international chess federations. Each square on the board has a name from a1 to h8.  - This is a list of all the winners of the Armenian Chess Championship. The first championship was played in 1934, when Armenia was a part of the Transcaucasian SFSR. Championships were held sporadically in the Armenian SSR until 1945, when they became contested every year; this has continued today in independent Armenia. The tournament has usually been held as a round robin of the country's top players.  - Arshak B. Petrosian ( Armenian :   ; born December 16 , 1953 ) is an Armenian chess player and National Coach . FIDE awarded him the International Grandmaster title in 1984 . He won the Armenian Chess Championship in 1974 and 1976 . He became a prominent Soviet tournament player during the 1980s , winning games against such noted grandmasters as Alexey Shirov , Rafael Vaganian , and Alexander Morozevich . His current Elo rating is 2470 , although he has been inactive for at least five years . More recently he has served as a trainer and mentor to his son - in - law , Péter Lékó . Petrosian is not related to Tigran Petrosian , also Armenian , who was World Chess Champion from 1963 to 1969 .  - Yerevan (classical spelling:  ) is the capital and largest city of Armenia, as well as one of the world's oldest continuously inhabited cities. Situated along the Hrazdan River, Yerevan is the administrative, cultural, and industrial center of the country. It has been the capital since 1918, the thirteenth in the history of Armenia, and the seventh located in or around the Ararat plain.  - A board game is a tabletop game that involves counters or moved or placed on a pre-marked surface or "board", according to a set of rules. Some games are based on pure strategy, but many contain an element of chance; and some are purely chance, with no element of skill.  - Alexander Sergeyevich Morozevich (born July 18, 1977) is a Russian chess Grandmaster.   - Rafael Vaganian is an Armenian chess grandmaster known for his sharp tactical style of play. Vaganian was born on 15 October 1951 in Yerevan.  - Armenia ( tr. "Hayastan"), officially the Republic of Armenia (tr. "Hayastani Hanrapetutyun"), is a sovereign state in the South Caucasus region of Eurasia. Located in Western Asia on the "Armenian Highlands", it is bordered by Turkey to the west, Russia and Georgia to the north and Azerbaijan to the east, and Iran and Azerbaijan's exclave of Nakhchivan to the south.    Given the paragraphs above, decide what entity has the relation 'place of birth' with 'yerevan'.
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Answer: arshak petrosian


Information:  - Ira Gershwin (December 6, 1896 August 17, 1983) was an American lyricist who collaborated with his younger brother, composer George Gershwin, to create some of the most memorable songs of the 20th century.  - Guy Reginald Bolton (23 November 1884  4 September 1979) was an Anglo-American playwright and writer of musical comedies. Born in England and educated in France and the U.S., he trained as an architect but turned to writing. Bolton preferred working in collaboration with others, principally the English writers P. G. Wodehouse and Fred Thompson, with whom he wrote 21 and 14 shows respectively, and the American playwright George Middleton, with whom he wrote ten shows. Among his other collaborators in Britain were George Grossmith Jr., Ian Hay and Weston and Lee. In the U.S., he worked with George and Ira Gershwin, Kalmar and Ruby and Oscar Hammerstein II.  - Lady , Be Good ( title sometimes presented with an exclamation point ) is a musical written by Guy Bolton and Fred Thompson with music by George and lyrics by Ira Gershwin . It was first presented on Broadway in 1924 ; the West End production followed in 1926 . The story of the musical is about a brother and sister who are out of money ; both are eager to sacrifice themselves to help the other . This was the first Broadway collaboration of the Gershwin brothers , and the Astaire siblings play a brother - sister dance team .  - Oscar Greeley Clendenning Hammerstein II (July 12, 1895  August 23, 1960) was an American librettist, theatrical producer, and (usually uncredited) theatre director of musicals for almost forty years. Hammerstein won eight Tony Awards and two Academy Awards for Best Original Song. Many of his songs are standard repertoire for singers and jazz musicians. He co-wrote 850 songs. Hammerstein was the lyricist and playwright in his partnerships; his collaborators wrote the music. Hammerstein collaborated with numerous composers, such as Jerome Kern, with whom he wrote "Show Boat", Vincent Youmans, Rudolf Friml, Richard A. Whiting and Sigmund Romberg; but he is best known for his collaborations with Richard Rodgers, which include "Oklahoma!", "Carousel", "South Pacific", "The King and I", and "The Sound of Music".  - Kalmar and Ruby refers to the famous songwriting team of the first half of the 20th century of Bert Kalmar and Harry Ruby.    Given the paragraphs above, decide what entity has the relation 'composer' with 'george gershwin'.
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Answer:
lady