query: located_in_the_administrative_territorial_entity viper 
supports: Six Flags Entertainment Corporation, or simply Six Flags, is an amusement park corporation based in the United States, with properties in the US, Canada, and Mexico. It is the largest amusement park company based on the number of properties it owns, and the fifth-most popular in terms of attendance. The company maintains 18 properties throughout North America consisting of theme parks, thrill parks, water parks, and family entertainment centers. In 2009, Six Flags properties hosted 23.9 million guests. Engineers design materials, structures, and systems while considering the limitations imposed by practicality, regulation, safety, and cost. The word "engineer ("from the Latin "ingeniator"")" is derived from the Latin words "ingeniare" ("to contrive, devise") and "ingenium" ("cleverness"). The foundation education of an engineer is typically a 4-year bachelor's degree or in some countries, a master's degree in an engineering discipline plus 46 years peer-reviewed professional practice culminating in a project report or thesis. Engineers who seek a professional engineer license in N. America will be required to take further exams in ethics, law and professional practice. Six Flags St. Louis, originally known as Six Flags Over Mid-America, is a theme park located in Eureka, Missouri, a suburb within southwestern Greater St. Louis. The park is located within the far northeastern portion of the Ozark Plateau, 34 miles southwest of downtown St. Louis, Missouri. The park opened on June 5, 1971. It was the third of only three company start-up parks created by the Six Flags chain. The other two parks built from the ground up were Six Flags over Texas and Six Flags over Georgia. Unlike the other two parks, which are currently managed but are no longer owned by Six Flags, Six Flags St. Louis is still completely owned and operated by the Six Flags corporation. The park branded itself as 'The Coaster Capital of Missouri' in 2013. Admission to Six Flags St. Louis also includes free admission to Hurricane Harbor. "Six flags over Texas" is the slogan used to describe the six countries that have had sovereignty over some or all of the current territory of the U.S. state of Texas: Spain (15191685; 16901821), France (16851690), Mexico (18211836), the Republic of Texas (18361845), the Confederate States of America (18611865), and the United States of America (18451861; 1865present). This slogan has been incorporated into shopping malls, theme parks (Six Flags), and other enterprises. The six flags are also shown on the reverse of the Seal of Texas. Eureka is a city located in St. Louis County, Missouri, United States between the cities of St. Louis and Pacific along Interstate 44. It is a portion of the Greater St. Louis metro area. As of the 2010 census, the city had a population of 10,189. Since 1971, Eureka has been known as the home of the amusement park Six Flags St. Louis (formerly Six Flags Over Mid-America). A roller coaster is an amusement ride developed for amusement parks and modern theme parks. LaMarcus Adna Thompson obtained a patent regarding roller coasters on January 20, 1885, which were made out of wood, but this patent is considerably later than the "Russian mountains" described below. In essence a specialized railroad system, a roller coaster consists of a track that rises in designed patterns, sometimes with one or more "inversions" (such as vertical loops) that briefly turn the rider upside down. The track does not necessarily have to be a complete circuit, as shuttle roller coasters demonstrate. Most roller coasters have multiple cars in which passengers sit and are restrained. Two or more cars hooked together are called a train. Some roller coasters, notably wild mouse roller coasters, run with single cars. A travelling funfair, often simply called a fair, is a small to medium-sized travelling show primarily composed of stalls and other amusements. Six Flags Over Georgia is a theme park located west of Atlanta in Cobb County, Georgia, United States. Featuring characters and themes from a variety of Warner Bros. properties such as "Looney Tunes" and DC Comics, the park opened to the public in 1967 as the second of three theme parks built by Six Flags. It features eleven roller coasters, including top-ranked Mind Bender and Goliath that have been recognized annually by "Amusement Today", and over 30 other rides, shows, and attractions. Hurricane Harbor, a water park included in the price of admission to the amusement park, was added in 2014. Six Flags AstroWorld was a seasonally operated theme park located on approximately of land (later expanded to over ) between Kirby Drive and Fannin Avenue, directly south of Loop 610 in Houston, Texas. Opening on June 1, 1968, it was originally developed and constructed as part of the Astrodomain, the brainchild of local philanthropist and former Houston mayor Judge Roy Hofheinz, who intended it to complement The Astrodome. Anton Schwarzkopf (8 July 1924  30 July 2001) was a German engineer of amusement rides, and founder of the Schwarzkopf Industries Company, which built numerous amusement rides and large roller coasters for both amusement parks and travelling funfairs. St. Louis is an independent city and major U.S. port in the State of Missouri, built along the western bank of the Mississippi River, on the border with Illinois. The city has an estimated 2015 population of 315,685, and is the cultural and economic center of the Greater St. Louis area (home to 2,916,447 people), making it the largest metropolitan area in Missouri and the 19th-largest in the United States. Greater St. Louis is the metropolitan area that completely surrounds and includes the independent city of St. Louis (the principal city). It includes parts of both the U.S. states of Missouri and Illinois. The city core in on the border to Illinois and collectively the two regions form the combined metropolitan area. St. Louis is the largest metro area in Missouri, and is the second largest in Illinois. St. Louis County overlays the city of St. Louis and their two populations are generally tabulated independently of each other. Houston is the most populous city in Texas and the fourth-most populous city in the United States after Chicago, located in Southeast Texas near the Gulf of Mexico. With a census-estimated 2014 population of 2.239 million within an area of , it also is the largest city in the Southern United States, as well as the seat of Harris County. It is the principal city of HoustonThe WoodlandsSugar Land, which is the fifth-most populated metropolitan area in the United States of America. Missouri (see pronunciations) is a state in the Midwestern region of the United States, achieving statehood in 1821. With over six million residents, it is the eighteenth most populous state and host to the mean center of United States population. The largest urban areas are St. Louis, Kansas City, Springfield, and Columbia. The capitol is in Jefferson City on the Missouri River. The state is the twenty-first most extensive by area and is geographically diverse. The Northern Plains were once covered by glaciers, then tallgrass prairie, and now the deep soils yield great agricultural productivity. In the South are the Ozarks, a forested highland, providing timber, minerals, and recreation. The Mississippi River forms the eastern border of the state, eventually flowing into the swampy Missouri Bootheel. The Viper at Six Flags AstroWorld was an Anton Schwarzkopf designed Looping Star model and had operated at AstroWorld since 1989 . It consisted of a single loop and was demolished with the closing of AstroWorld on October 30 , 2005 . It had originally been the Jet Scream at Six Flags St. Louis . An amusement park (sometimes referred to as a funfair) or theme park is a group of entertainment attractions, rides, and other events in a location for the enjoyment of large numbers of people. Amusement parks have a fixed location, as opposed to travelling funfairs and traveling carnivals, and are more elaborate than simple city parks or playgrounds, usually providing attractions meant to cater specifically to certain age groups, as well as some that are aimed towards all ages. Theme parks, a specific type of amusement park, are usually much more intricately themed to a certain subject or group of subjects than normal amusement parks.
candidates: atlanta avenue canada center eureka france georgia highland houston illinois jefferson kansas louis mexico mississippi missouri most normal north america of ozark south southwest texas thompson west woodlands
answer: texas