Question: Who is the mayor of the city where the National Cowboy and Western Heritage Museum is found?

full_context: Document 1: Oklahoma: The state is divided into 77 counties that govern locally, each headed by a three-member council of elected commissioners, a tax assessor, clerk, court clerk, treasurer, and sheriff. While each municipality operates as a separate and independent local government with executive, legislative and judicial power, county governments maintain jurisdiction over both incorporated cities and non-incorporated areas within their boundaries, but have executive power but no legislative or judicial power. Both county and municipal governments collect taxes, employ a separate police force, hold elections, and operate emergency response services within their jurisdiction. Other local government units include school districts, technology center districts, community college districts, rural fire departments, rural water districts, and other special use districts.
Document 2: Oklahoma: The Egyptian art collection at the Mabee-Gerrer Museum of Art in Shawnee is considered to be the finest Egyptian collection between Chicago and Los Angeles. The Oklahoma City Museum of Art contains the most comprehensive collection of glass sculptures by artist Dale Chihuly in the world, and Oklahoma City's National Cowboy and Western Heritage Museum documents the heritage of the American Western frontier. With remnants of the Holocaust and artifacts relevant to Judaism, the Sherwin Miller Museum of Jewish Art of Tulsa preserves the largest collection of Jewish art in the Southwest United States.
Document 3: Oklahoma: Oklahoma is in the nation's middle percentile in per capita spending on the arts, ranking 17th, and contains more than 300 museums. The Philbrook Museum of Tulsa is considered one of the top 50 fine art museums in the United States, and the Sam Noble Oklahoma Museum of Natural History in Norman, one of the largest university-based art and history museums in the country, documents the natural history of the region. The collections of Thomas Gilcrease are housed in the Gilcrease Museum of Tulsa, which also holds the world's largest, most comprehensive collection of art and artifacts of the American West.
Document 4: Auckland: In October 2010, Manukau City mayor Len Brown was elected mayor of the amalgamated Auckland Council. He was re-elected for a second term in October 2013. Brown did not stand for re-election in the 2016 mayoral election, and was succeeded by successful candidate Phil Goff in October 2016. Twenty councillors make up the remainder of the Auckland Council governing body, elected from thirteen electoral wards.
Document 5: Warsaw: As interesting examples of expositions the most notable are: the world's first Museum of Posters boasting one of the largest collections of art posters in the world, Museum of Hunting and Riding and the Railway Museum. From among Warsaw's 60 museums, the most prestigious ones are National Museum with a collection of works whose origin ranges in time from antiquity till the present epoch as well as one of the best collections of paintings in the country including some paintings from Adolf Hitler's private collection, and Museum of the Polish Army whose set portrays the history of arms.
Document 6: Cincinnati: The present Mayor of Cincinnati is John Cranley. The nine-member city council is composed of Vice Mayor Christopher Smitherman and Councilmembers Tamaya Dennard (President Pro-Tem), David Mann, Amy Murray, Chris Seelbach, P.G. Sittenfeld, Greg Landsman, Jeff Pastor, and Wendell Young. The city manager is Harry Black, and the manager maintains two assistant city managers.
Document 7: Tampere: In 2007, Tampere switched to a new model of government. Since then, a mayor and four deputy mayors have been chosen for a period of two years by the city council. The mayor also becomes the seat of the city council for the duration of the tenure.
Document 8: Ann Arbor, Michigan: Ann Arbor has a council-manager form of government. The City Council has 11 voting members: the mayor and 10 city council members. The mayor and city council members serve two-year terms: the mayor is elected every even-numbered year, while half of the city council members are up for election annually (five in even-numbered and five in odd-numbered years). Two council members are elected from each of the city's five wards. The mayor is elected citywide. The mayor is the presiding officer of the City Council and has the power to appoint all Council committee members as well as board and commission members, with the approval of the City Council. The current mayor of Ann Arbor is Christopher Taylor, a Democrat who was elected as mayor in 2014. Day-to-day city operations are managed by a city administrator chosen by the city council.
Document 9: Deb Sokolow: Deb Sokolow graduated from the University of Illinois at Urbana-Champaign in 1996, and received her MFA from the Art Institute of Chicago in 2004. Sokolow's solo museum shows include The Wadsworth Atheneum Museum of Art in Hartford, CT, The Kemper Museum in Kansas City; The Spertus Museum of Art, Chicago; a 12 x 12 show at the Museum of Contemporary Art in Chicago; the Abrons Art Center in New York City; INOVA in Milwaukee; and The Moore College of Art in Philadelphia. She has been included in group show shows at the Van Abbemuseum in The Netherlands; Scottsdale Museum of Contemporary Art in Arizona; Smart Museum in Chicago; Voorkamer in Belgium; and the Invisible-Exports in New York City. Sokolow's work is in the permanent collections of the Scottsdale Museum of Contemporary Art in Arizona, Museum of Contemporary Art, Chicago, the Spertus Museum in Chicago and The Kinsey Institute for Research in Sex, Gender, and Reproduction in Bloomington, Indiana. She is represented by Western Exhibitions, a contemporary art gallery in Chicago.
Document 10: Mick Cornett: Michael Earl Cornett Sr. (born July 16, 1958) is an American politician and former television personality who served as the 35th mayor of Oklahoma City, from 2005 until 2018. A member of the Republican Party, he was only the fourth mayor in Oklahoma City history to be elected to three terms and the first to be elected to four terms. He also served as President of the United States Conference of Mayors and as national President of the Republican Mayors and Local Officials (RMLO). He also served as Chairman of the U.S. Conference of Mayors Urban Economic Affairs Committee until 2007. In 2018, he was defeated in the Republican runoff by Tulsa businessman Kevin Stitt for GOP nomination for Governor of Oklahoma. In 2006, Cornett was defeated by Mary Fallin for the Republican runoff for U.S. Congress.
Document 11: Philadelphia: The city uses the strong-mayor version of the mayor-council form of government, which is headed by one mayor, in whom executive authority is vested. Elected at-large, the mayor is limited to two consecutive four-year terms under the city's home rule charter, but can run for the position again after an intervening term. The Mayor is Jim Kenney, who replaced Michael Nutter, who served two terms from 2009 to January 2016. Kenney, as all Philadelphia mayors have been since 1952, is a member of the Democratic Party, which tends to dominate local politics so thoroughly that the Democratic Mayoral primary is often more widely covered than the general election. The legislative branch, the Philadelphia City Council, consists of ten council members representing individual districts and seven members elected at large. Democrats currently hold 14 seats, with Republicans representing two allotted at-large seats for the minority party, as well as the Northeast-based Tenth District. The current council president is Darrell Clarke.
Document 12: Washington University in St. Louis: The Mildred Lane Kemper Art Museum, established in 1881, is one of the oldest teaching museums in the country. The collection includes works from 19th, 20th, and 21st century American and European artists, including George Caleb Bingham, Thomas Cole, Pablo Picasso, Max Ernst, Alexander Calder, Jackson Pollock, Rembrandt, Robert Rauschenberg, Barbara Kruger, and Christian Boltanski. Also in the complex is the 3,000 sq ft (300 m2) Newman Money Museum. In October 2006, the Kemper Art Museum moved from its previous location, Steinberg Hall, into a new facility designed by former faculty member Fumihiko Maki. Interestingly, the new Kemper Art Museum is located directly across from Steinberg Hall, which was Maki's very first commission in 1959.
Document 13: Israel: The Israel Museum in Jerusalem is one of Israel's most important cultural institutions and houses the Dead Sea scrolls, along with an extensive collection of Judaica and European art. Israel's national Holocaust museum, Yad Vashem, is the world central archive of Holocaust-related information. Beth Hatefutsoth (the Diaspora Museum), on the campus of Tel Aviv University, is an interactive museum devoted to the history of Jewish communities around the world. Apart from the major museums in large cities, there are high-quality artspaces in many towns and kibbutzim. Mishkan Le'Omanut on Kibbutz Ein Harod Meuhad is the largest art museum in the north of the country.
Document 14: Oklahoma City: The Museum of Osteology houses more than 300 real animal skeletons. Focusing on the form and function of the skeletal system, this 7,000 sq ft (650 m2) museum displays hundreds of skulls and skeletons from all corners of the world. Exhibits include adaptation, locomotion, classification and diversity of the vertebrate kingdom. The Museum of Osteology is the only one of its kind in America.
Document 15: Oklahoma City: The City of Oklahoma City has operated under a council-manager form of city government since 1927. Mick Cornett serves as Mayor, having first been elected in 2004, and re-elected in 2006, 2010, and 2014. Eight councilpersons represent each of the eight wards of Oklahoma City. City Manager Jim Couch was appointed in late 2000. Couch previously served as assistant city manager, Metropolitan Area Projects Plan (MAPS) director and utilities director prior to his service as city manager.
ground_truth: Mick Cornett
sub_queries: Where is the National Cowboy and Western Heritage Museum? Answer: Oklahoma City
Who is the mayor of Oklahoma City ? Answer: Mick Cornett