input question: Information: - Emperor Wen of Han (202157 BC) was the third emperor of the Han Dynasty of ancient China. His personal name was Liu Heng. - Empress Dowager Bo ( ) was an imperial concubine of Emperor Gao of Han ( Liu Bang ) . She was also known as Consort Bo ( ) during the life of the Emperor , and more formally as either Empress Dowager Xiaowen ( ) or ( rarer ) Empress Gao ( ) . Despite being a concubine of lower standing , her son , Liu Heng , became Emperor Wen of Han , cementing her place in history . The year of her birth is not known . She died in 155 BC. - The Han dynasty was the second imperial dynasty of China (206 BC220 AD), preceded by the Qin dynasty (221206 BC) and succeeded by the Three Kingdoms period (220280 AD). Spanning over four centuries, the Han period is considered a golden age in Chinese history. To this day, China's majority ethnic group refers to itself as the "Han people" and the Chinese script is referred to as "Han characters". It was founded by the rebel leader Liu Bang, known posthumously as Emperor Gaozu of Han, and briefly interrupted by the Xin dynasty (923 AD) of the former regent Wang Mang. This interregnum separates the Han dynasty into two periods: the Western Han or Former Han (206 BC 9 AD) and the Eastern Han or Later Han (25220AD). Given the information, choose the subject and object entities that have the relation of 'spouse'.???
output answer: empress dowager bo , emperor gaozu of han
Problem: Given the question: Information: - Paris (French: ) is the capital and most populous city of France. It has an area of and a population in 2013 of 2,229,621 within its administrative limits. The city is both a commune and department, and forms the centre and headquarters of the Ile-de-France, or Paris Region, which has an area of and a population in 2014 of 12,005,077, comprising 18.2 percent of the population of France. - Dance is a performance art form consisting of purposefully selected sequences of human movement. This movement has aesthetic and symbolic value, and is acknowledged as dance by performers and observers within a particular culture. Dance can be categorized and described by its choreography, by its repertoire of movements, or by its historical period or place of origin. - Fred Astaire (born Frederick Austerlitz; May 10, 1899 June 22, 1987) was an American dancer, singer, actor, choreographer and television presenter. - Porgy and Bess is an English-language opera composed in 1934 by George Gershwin, with a libretto written by DuBose Heyward and Ira Gershwin from Heyward's novel "Porgy" and later play of the same title. "Porgy and Bess" was first performed in Boston on September 30, 1935, and featured an entire cast of classically trained African-American singersa daring artistic choice at the time. After suffering from an initially unpopular public reception due in part to its racially charged theme, the Houston Grand Opera production of the opera in 1976 gained it new popularity, eventually becoming one of the best-known and most frequently performed operas. - An American in Paris is a jazz-influenced symphonic poem by the American composer George Gershwin, written in 1928. Inspired by the time Gershwin had spent in Paris, it evokes the sights and energy of the French capital in the 1920s and is one of his best-known compositions. - A pianist is an individual musician who plays the piano. Most forms of Western music can make use of the piano. Consequently, pianists have a wide variety of repertoire and styles to choose from, including traditionally classical music, Jazz, blues and all sorts of popular music, including rock music. Most pianists can, to a certain extent, play other keyboard-related instruments such as the synthesizer, harpsichord, celesta and the organ and keyboard. Perhaps the greatest pianist of all time was Franz Liszt, whose piano mastery was described by Anton Rubinstein: "In comparison with Liszt, all other pianists are children". - A lyricist or lyrist is a person who writes lyricswords for songsas opposed to a composer, who writes the song's melody. - George Jacob Gershwin (September 26, 1898 July 11, 1937) was an American composer and pianist. Gershwin's compositions spanned both popular and classical genres, and his most popular melodies are widely known. Among his best-known works are the orchestral compositions "Rhapsody in Blue" (1924) and "An American in Paris" (1928) as well as the opera "Porgy and Bess" (1935). - 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). - 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. - Rhapsody in Blue is a 1924 musical composition by American composer George Gershwin for solo piano and jazz band, which combines elements of classical music with jazz-influenced effects. - '' ' The Half of it , Dearie ' Blues '' is a song composed by George Gershwin , with lyrics by Ira Gershwin . It was introduced by Fred Astaire and Kathlene Martyn in the 1924 musical Lady be Good . Given the information, choose the subject and object entities that have the relation of 'instance of'.
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The answer is:
'the half of it , musical composition