Context: A U.S. state is a constituent political entity of the United States of America. There are 50 states, which are bound together in a union with each other. Each state holds administrative jurisdiction over a defined geographic territory, and shares its sovereignty with the United States federal government. Due to the shared sovereignty between each state and the federal government, Americans are citizens of both the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons covered by certain types of court orders (e.g., paroled convicts and children of divorced spouses who are sharing custody)., Horse racing is an equestrian performance sport, involving two or more jockeys riding horses over a set distance for competition. It is one of the most ancient of all sports and its basic premise  to identify which of two or more horses is the fastest over a set course or distance  has remained unchanged since the earliest times., Illinois Route 53 (IL 53) is an arterial northsouth state highway in northeast Illinois. IL 53 runs from Interstate 55 (I-55) west of historic U.S. Route 66 (US 66) in Gardner to IL 83 in Long Grove, a distance of . It mainly cuts through the western suburbs of Chicago, passes through Bolingbrook, Romeoville, Crest Hill and Joliet, merging into I-55 at Gardner., The Thoroughbred is a horse breed best known for its use in horse racing. Although the word "thoroughbred" is sometimes used to refer to any breed of purebred horse, it technically refers only to the Thoroughbred breed. Thoroughbreds are considered "hot-blooded" horses that are known for their agility, speed and spirit., A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common censuses include agriculture, business, and traffic censuses. The United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every 10 years. United Nations recommendations also cover census topics to be collected, official definitions, classifications and other useful information to co-ordinate international practice., A breed is a specific group of domestic animals having homogeneous appearance (phenotype), homogeneous behavior, and/or other characteristics that distinguish it from other organisms of the same species. Breeds are formed through genetic isolation and either natural adaptation to the environment or selective breeding, or a combination of the two. Despite the centrality of the idea of "breeds" to animal husbandry and agriculture, no single, scientifically accepted definition of the term exists. A breed is therefore not an objective or biologically verifiable classification but is instead a term of art amongst groups of breeders who share a consensus around what qualities make some members of a given species members of a nameable subset., Arlington Heights is a town in Cook County and Lake County in the U.S. state of Illinois. A suburb of Chicago, it lies about northwest of the city's downtown. The population was 75,101 at the 2010 census. It is the most populous community in the United States that is incorporated as a "village", although it is not far ahead of its nearby Illinois neighboring villages of Schaumburg and Bolingbrook and adjacent Palatine., Chicago (or ), officially the City of Chicago, is the third-most populous city in the United States, and the fifth-most populous city in North America. With over 2.7 million residents, it is the most populous city in the state of Illinois and the Midwestern United States, and the county seat of Cook County. The Chicago metropolitan area, often referred to as Chicagoland, has nearly 10 million people and is the third-largest in the U.S., Illinois is a state in the midwestern region of the United States, achieving statehood in 1818. It is the 5th most populous state and 25th largest state in terms of land area, and is often noted as a microcosm of the entire country. The word "Illinois" comes from the Algonquin word for "tribe of superior men". With Chicago in the northeast, small industrial cities and great agricultural productivity in central and northern Illinois, and natural resources like coal, timber, and petroleum in the south, Illinois has a diverse economic base and is a major transportation hub. The Port of Chicago connects the state to other global ports from the Great Lakes, via the Saint Lawrence Seaway, to the Atlantic Ocean, as well as the Great Lakes to the Mississippi River, via the Illinois River. For decades, O'Hare International Airport has been ranked as one of the world's busiest airports. Illinois has long had a reputation as a bellwether both in social and cultural terms and politics., A suburb is a residential area or a mixed use area, either existing as part of a city or urban area or as a separate residential community within commuting distance of a city. In most English-speaking regions, suburban areas are defined in contrast to central or inner city areas, but in Australian English and South African English, "suburb" has become largely synonymous with what is called a "neighborhood" in other countries and the term extends to inner city areas. In some areas, such as Australia, China, New Zealand, the United Kingdom, and a few U.S. states, new suburbs are routinely annexed by adjacent cities. In others, such as Arabia, Canada, France, and much of the United States, many suburbs remain separate municipalities or are governed as part of a larger local government area such as a county., Arlington International Racecourse is a horse race track in the Chicago suburb of Arlington Heights, Illinois. Horse racing in the Chicago region has been a popular sport since the early days of the city in the 1830s, and at one time Chicago had more horse racing tracks (six) than any other major metropolitan area. Arlington International was the site of the first thoroughbred race with a million-dollar purse in 1981. It is located near the Illinois Route 53 freeway., A race track (or 'racetrack', 'racing track' or 'racing circuit') is a facility built for racing of vehicles, athletes, or animals (e.g. horse racing or greyhound racing). A race track also may feature grandstands or concourses. Racetracks are also used in the study of animal locomotion. Some motorsport tracks are called speedways., or "cultivars" of an animal species, achieved through the process of selective breeding. When the lineage of a purebred animal is recorded, that animal is said to be "pedigreed"., The Chicago Handicap is a Grade III race for Thoroughbred horses set at seven furlongs in the Spring at Arlington Park in Arlington Heights , Illinois . Open to fillies and mares , age three and up , the `` Cap '' currently offers a purse of $ 150,000 ., Subject: chicago handicap, Relation: instance_of, Options: (A) agriculture (B) airport (C) animal (D) animal husbandry (E) area (F) art (G) base (H) behavior (I) breed (J) census (K) city (L) combination (M) competition (N) country (O) county (P) court (Q) distance (R) enumeration (S) environment (T) facility (U) federal government (V) federal republic (W) government (X) grove (Y) hill (Z) horse ([) horse race (\) information (]) jurisdiction (^) lake (_) motorsport (`) neighborhood (a) part (b) people (c) politics (d) population (e) practice (f) procedure (g) process (h) race (i) race track (j) racing (k) region (l) republic (m) route (n) set (o) share (p) sharing (q) spirit (r) state (s) state highway (t) subset (u) suburb (v) territory (w) thoroughbred (x) town (y) track (z) tribe ({) union (|) word
Output: horse race