title: John Deere World Headquarters
paragraph_text: The John Deere World Headquarters is a complex of four buildings located on 1,400 acres (5.7 km²) of land at One John Deere Place, Moline, Illinois, United States. The complex serves as corporate headquarters for John Deere.
title: Oklahoma City
paragraph_text: There are numerous community and international newspapers locally that cater to the city's ethnic mosaic; such as The Black Chronicle, headquartered in the Eastside, the OK VIETIMES and Oklahoma Chinese Times, located in Asia District, and various Hispanic community publications. The Campus is the student newspaper at Oklahoma City University. Gay publications include The Gayly Oklahoman.
title: Quán Sứ Temple
paragraph_text: Quán Sứ Temple (, is a Buddhist temple located at 73 Quan Su Street, Hanoi, Vietnam. The temple is the headquarters of the Buddhist Sangha of Vietnam.
title: Nanjing
paragraph_text: Archaeological discovery shows that "Nanjing Man" lived in more than 500 thousand years ago. Zun, a kind of wine vessel, was found to exist in Beiyinyangying culture of Nanjing in about 5000 years ago. In the late period of Shang dynasty, Taibo of Zhou came to Jiangnan and established Wu state, and the first stop is in Nanjing area according to some historians based on discoveries in Taowu and Hushu culture. According to legend,[which?] Fuchai, King of the State of Wu, founded a fort named Yecheng (冶城) in today's Nanjing area in 495 BC. Later in 473 BC, the State of Yue conquered Wu and constructed the fort of Yuecheng (越城) on the outskirts of the present-day Zhonghua Gate. In 333 BC, after eliminating the State of Yue, the State of Chu built Jinling Yi (金陵邑) in the western part of present-day Nanjing. It was renamed Moling (秣陵) during reign of Qin Shi Huang. Since then, the city experienced destruction and renewal many times.[citation needed] The area was successively part of Kuaiji, Zhang and Danyang prefectures in Qin and Han dynasty, and part of Yangzhou region which was established as the nation's 13 supervisory and administrative regions in the 5th year of Yuanfeng in Han dynasty (106 BC). Nanjing was later the capital city of Danyang Prefecture, and had been the capital city of Yangzhou for about 400 years from late Han to early Tang.
title: Buckingham Palace
paragraph_text: Buckingham Palace (UK: / ˈbʌkɪŋəm ˈpælɪs /) is the London residence and administrative headquarters of the reigning monarch of the United Kingdom. Located in the City of Westminster, the palace is often at the centre of state occasions and royal hospitality. It has been a focal point for the British people at times of national rejoicing and mourning.
title: Yaxing Coach
paragraph_text: Yaxing Coach (Yangzhou Yaxing Motor Coach Co., Ltd) is a bus manufacturer based in Yangzhou, Jiangsu, China. It is a subsidiary of Jiangsu Yaxing that was founded in 1998. Buses are produced under the "Yaxing", "Yangtse（Yangzlv）", and more recently Asiastar brands.
title: Buckingham Palace
paragraph_text: Buckingham Palace (UK: ) is the London residence and administrative headquarters of the monarch of the United Kingdom. Located in the City of Westminster, the palace is often at the centre of state occasions and royal hospitality. It has been a focal point for the British people at times of national rejoicing and mourning.
title: Aerotech Consumer Aerospace
paragraph_text: The company's headquarters are located in Cedar City, Utah and its products are sold mainly through US and international dealers. They specialize in APCP mid and high power rocket motors, as well as supplying rocket kits designed around their motors.
title: Dharwad
paragraph_text: Dharwad is the district headquarters of Dharwad district in the state of Karnataka, India. It was merged with the city of Hubballi in 1961 to form the twin cities of Hubballi-Dharwad. It covers an area of 200.23 km² and is located 430 km northwest of Bengaluru, on NH-48, between Bengaluru and Pune.
title: Jamnagar district
paragraph_text: Jamnagar District is a district of India located on the southern coast of the Gulf of Kutch in the state of Gujarat. Its headquarters are located in the eponymous city of Jamnagar. It hosts the production facilities of several large Indian companies such as Reliance and Essar. Among its attractions are several palaces, a Marine National Park and a Bird Sanctuary, known as Khijadiya Bird Sanctuary.
title: Jimmy John's
paragraph_text: Jimmy John's Franchise, LLC Type Privately held company Founded 1983; 34 years ago (1983) Founder Jimmy John Liautaud Headquarters Champaign, Illinois, United States Number of locations 2,630 (December 2016) Key people James North (CEO) Owner Jimmy John Liautaud, Roark Capital Group Website jimmyjohns.com
title: General Electric
paragraph_text: GE is a multinational conglomerate headquartered in Fairfield, Connecticut. Its main offices are located at 30 Rockefeller Plaza at Rockefeller Center in New York City, known now as the Comcast Building. It was formerly known as the GE Building for the prominent GE logo on the roof; NBC's headquarters and main studios are also located in the building. Through its RCA subsidiary, it has been associated with the center since its construction in the 1930s. GE moved its corporate headquarters from the GE Building on Lexington Avenue to Fairfield in 1974.
title: Place du Colonel Fabien
paragraph_text: The headquarters of the French Communist Party, designed by the Brazilian communist and utilitarian architect Oscar Niemeyer is located here, as is a station of the Paris Métro. Nearby is the former location of the medieval Gibbet of Montfaucon, a multi-tiered gibbet that was for most of its history outside Paris' city walls.
title: Love Around
paragraph_text: "Love Around" was filmed entirely on location in Taiwan. Asia FM 92.7, the radio station depicted in the drama is an actual free to air radio station in Taiwan with its headquarters and broadcasting station in Taoyuan City, Taoyuan County. The building and set used in the drama to depict the radio station is actually an office building located at 257 Xinhu 2nd Rd., Neihu District, Taipei City, which is only a few blocks from Sanlih's broadcasting headquarters in the Neihu District of Taipei. The resort that Zhou Zhen owns is the former "Leo Ocean Resort" now called "EHR Hotels & Resorts Yilan", located in Yilan County. The homes of both main lead characters are located in the newly developed area of Danshui District New Taipei City.
title: Alamnagar
paragraph_text: Alamnagar (community development block) is one of the administrative divisions of Madhepura district in the Indian state of Bihar. The block headquarters are located at a distance of 58 km from the district headquarters, namely, Madhepura. The name of Alamnagar is named for Shah Alamgir.
title: Kathmandu
paragraph_text: Kathmandu(/ˌkɑːtmɑːnˈduː/; Nepali pronunciation: [kɑʈʰmɑɳɖu]) is the capital and largest municipality of Nepal. It also hosts the headquarters of the South Asian Association for Regional Cooperation (SAARC). It is the only city of Nepal with the administrative status of Mahanagar (Metropolitan City), as compared to Upa-Mahanagar (Sub-Metropolitan City) or Nagar (City). Kathmandu is the core of Nepal's largest urban agglomeration located in the Kathmandu Valley consisting of Lalitpur, Kirtipur, Madhyapur Thimi, Bhaktapur and a number of smaller communities. Kathmandu is also known informally as "KTM" or the "tri-city". According to the 2011 census, Kathmandu Metropolitan City has a population of 975,453 and measures 49.45 km2 (19.09 sq mi).
title: Plymouth
paragraph_text: Plymouth is served by Plymouth Hospitals NHS Trust and the city's NHS hospital is Derriford Hospital 4 miles (6 km) north of the city centre. The Royal Eye Infirmary is located at Derriford Hospital. South Western Ambulance Service NHS Foundation Trust operates in Plymouth and the rest of the south west; its headquarters are in Exeter.
title: China Sunergy
paragraph_text: China Sunergy () is a Chinese solar cell products manufacturer based in Nanjing, Jiangsu. The company specializes in creating solar cells from silicon wafers. China Sunergy has a major customer base in China, but also sells their products internationally. On May 17 2007 the company began producing both monocrystalline and multicrystalline silicon solar cells. In 2012 the annual production of the cells were 1 GW and PV modules 1.2 GW. After listing as a NASDAQ Company in 2007, in 2013 May 23 China Sunergy opened its first international manufacturing base in Turkey. Turkey factory has the biggest solar cell and module capacity among both in Turkey and Europe. CSUN currently is the only Chinese solar cells and module manufacturer with a manufacturing base in Europe. Located in Tuzla Free Trade Zone, Istanbul, CSUN (Turkey) is in progress of building its second factory in Turkey within 2015. CSUN has been recognized as a Tier 1 module supplier by the Bloomberg New Energy Finance (BENF) PV Module Maker Tiering System on 23 March 2014.

Question: How long had the headquarters location of China Sunergy been the capitol city of the headquarters location of Yaxing Coach?

Question decomposition:
question: China Sunergy >> headquarters location
answer: Nanjing
question: Yaxing Coach >> headquarters location
answer: Yangzhou
question: How long had #1 been the capital city of #2 ?
answer: about 400 years

Answer: about 400 years