Information:  - Mopar is the parts, service and customer care organization within Fiat Chrysler Automobiles. Mopar also designs and builds a small number of customized vehicles. The name derives from a combination of letters from the words "MOtor" and "PARts".  - 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).  - Downriver is the unofficial name for a collection of 18 suburban cities and townships in Wayne County, Michigan south of Detroit along the western shore of the Detroit River.  - London is the capital and most populous city of England and the United Kingdom, as well as the most populous city proper in the European Union. Standing on the River Thames in the south east of the island of Great Britain, London has been a major settlement for two millennia. It was founded by the Romans, who named it "Londinium". London's ancient core, the City of London, largely retains its medieval boundaries. Since at least the 19th century, "London" has also referred to the metropolis around this core, historically split between Middlesex, Essex, Surrey, Kent, and Hertfordshire, which today largely makes up Greater London, governed by the Mayor of London and the London Assembly.  - Detroit is the most populous city in the U.S. state of Michigan, the fourth-largest city in the Midwest and the largest city on the United StatesCanada border. It is the seat of Wayne County, the most populous county in the state.  - Trenton Engine Plant is a Chrysler automobile factory in Trenton , Michigan . The north factory opened in 1952 while the south plant opened in 2010 .  - Trenton is a small city in Wayne County in the southeast portion of the U.S. state of Michigan. At the 2010 census, the city population was 18,853. The city is part of Downriver, a collection of mostly blue-collar communities south of Detroit on the west bank of the Detroit River.  - Jeep is a brand of American automobiles that is a division of FCA US LLC (formerly Chrysler Group, LLC), a wholly owned subsidiary of Fiat Chrysler Automobiles. The former Chrysler Corporation acquired the Jeep brand, along with the remaining assets of its owner American Motors, in 1987. The division is headquartered in Toledo, Ohio. Jeep's current product range consists solely of sport utility vehicles and off-road vehicles, but has also included pickup trucks in the past.  - The Detroit River flows for from Lake St. Clair to Lake Erie as a strait in the Great Lakes system and forms part of the border between Canada and the United States. The river divides the metropolitan areas of Detroit, Michigan and Windsor, Ontario - an area referred to as DetroitWindsor. The two cities are connected by the Ambassador Bridge, the DetroitWindsor Tunnel and the Michigan Central Railway Tunnel.  - 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.  - Auburn Hills (formerly Pontiac Township) is a city in Oakland County, in the U.S. state of Michigan. The population was 21,412 at the 2010 census. It is home to the world headquarters of Chrysler, The Palace of Auburn Hills (home of the Detroit Pistons), and Oakland University.   - Dodge is an American brand of cars, minivans, and sport utility vehicles manufactured by FCA US LLC (formerly known as Chrysler Group LLC), based in Auburn Hills, Michigan. Dodge vehicles currently include the lower-priced badge variants of Chrysler-badged vehicles as well as performance cars, though for much of its existence Dodge was Chrysler's mid-priced brand above Plymouth.  - FCA US LLC, also known as Fiat Chrysler or simply Chrysler, is the American subsidiary of Fiat Chrysler Automobiles N.V., an Italian controlled automobile manufacturer registered in the Netherlands with headquarters in London, U.K., for tax purposes. FCA US is one of the "Big Three" American automobile manufacturers. FCA US has its headquarters in Auburn Hills, Michigan and sells vehicles worldwide under its flagship Chrysler brand, as well as the Dodge, Jeep, and Ram Trucks. Other major divisions include Mopar, its automotive parts and accessories division, and SRT, its performance automobile division.  - Michigan is a state in the Great Lakes and Midwestern regions of the United States. The name Michigan is the French form of the Ojibwa word "mishigamaa", meaning "large water" or "large lake". Michigan is the tenth most populous of the 50 United States, with the 11th most extensive total area (the largest state by total area east of the Mississippi River). Its capital is Lansing, and its largest city is Detroit.    What is the relationship between 'trenton engine plant' and 'wayne county'?
Answer:
located in the administrative territorial entity