Question: What is the nationality of the designer of the Guangzhou Opera House?

full_context: Document 1: Huacheng Square: Huangcheng Square, or Flower City Square (Chinese: 花城廣場), is the largest city square in the city of Guangzhou. The square is situated on the city axis in Zhujiang New Town, occupies a 56 km2 area with Haixinsha Island to its south and Huangpu Avenue to its north. Guangzhou Opera House, Guangdong Museum and Guangzhou Library are also located around the square.
Document 2: Hélène Binet: Hélène Binet (born 1959) is a Swiss-French architectural photographer based in London, who is also one of the leading architectural photographers in the world. She is most known for her work with architects Daniel Libeskind, Peter Zumthor and Zaha Hadid, and has published books on works of several architects.
Document 3: Guangzhou Opera House: Guangzhou Opera House () is a Chinese opera house in Guangzhou, Guangdong province, People's Republic of China. Designed by Zaha Hadid, it opened in 2010.
Document 4: 520 West 28th Street: 520 West 28th Street, also known as the Zaha Hadid Building, is located in New York City. Designed by the architect Zaha Hadid, the building was her first residential building in New York and one of her last projects before her death. The building is located along the High Line. The building is set to have four art galleries located at street level. The building also has a sculpture platform with art curated by Friends of the High Line.
Document 5: Herzog &amp; de Meuron: Herzog & de Meuron Basel Ltd., or Herzog & de Meuron Architekten, BSA/SIA/ETH (HdM), is a Swiss architecture firm with its head office in Basel, Switzerland. The careers of founders and senior partners Jacques Herzog (born 19 April 1950) and Pierre de Meuron (born 8 May 1950) closely paralleled one another, with both attending the Swiss Federal Institute of Technology (ETH) in Zurich. They are perhaps best known for their conversion of the giant Bankside Power Station in London to the new home of Tate Modern. Jacques Herzog and Pierre de Meuron have been visiting professors at the Harvard University Graduate School of Design since 1994 and professors at ETH Zürich since 1999.
Document 6: Strata Tower: Strata Tower is a forty-story luxury residential building, designed by New York-based architects Hani Rashid and Lise Anne Couture of Asymptote Architecture, currently being built on Al Raha Beach, Abu Dhabi, United Arab Emirates. Construction has begun and it is scheduled for completion by 2013. It is being developed by Aldar Properties.
Document 7: Dana Arnold: Dana Rebecca Arnold is professor of architectural history and theory at the University of Middlesex, UK where she is currently director of the Centre for Ideas. From 1999 to 2012 she was professor in architectural history at the University of Southampton UK. Arnold was a guest professor at Tianjin University in China, and honorary professor at the Middle East Technical University in Ankara, Turkey. She has published books, essays and articles on architecture, architectural history, imperialism and historiography. Arnold describes her research as a "renegotiation of the boundaries of architectural history; to critically engage with past and present histories and disclose latent assumptions about ‘east’ and ‘west’ through the biases and absences in the writing of architectural and cultural histories."
Document 8: Heydar Aliyev Center: The Heydar Aliyev Center is a 619000 sqft building complex in Baku, Azerbaijan designed by Iraqi-British architect Zaha Hadid and noted for its distinctive architecture and flowing, curved style that eschews sharp angles. The center is named after Heydar Aliyev, the first secretary of Soviet Azerbaijan from 1969 to 1982, and president of Azerbaijan Republic from October 1993 to October 2003.
Document 9: Zoka Zola: Zoka Zola is a Croatian architect and teacher who operates her own studio in Chicago, Illinois. She has license to work as an architect in the USA, the UK, and Croatia. Her most notable work is the Pfanner House for which she received the Home of the Year Award named as the best house in North America by Architecture Magazine. Kenneth Frampton's publication the "American Masterworks: Houses of the 20th and 21st Centuries" lists this house among the 43 houses constructed in the USA since 1985. She is also a professor at the School of Architecture at University of Illinois, Chicago. Her firm is also involved in design of three zero energy houses of which one is located in Chicago (for which she has received an award) and the other two are in Kuala Lumpur.
Document 10: Zekra Alwach: Thikra or Zekra Muhammed Jaber Alwash Al-Abayachi (Arabic: ذكرى محمد جابر علوش العبايجي‎ ‎ ) is the current mayor of Baghdad since February 2015, replacing Naim Aboub al-Kaabi. Alwach has a Bachelor in engineering from Baghdad University of Technology, a Master in construction project management from University of Baghdad and a PhD in construction project management from Baghdad University of Technology. She started her career in 1993 as an engineer in construction projects and was responsible for administrative responsibilities until she was appointed director general of the Ministry of Higher Education, and is regarded as highly skilled technocrat. Alwach reports directly to the Prime Minister, Haider al-Abadi. In her only interview with an English-language publication Alwach talked about the challenges of governing a war-torn city, the weight of responsibility she feels to succeed and the struggle for women’s rights in Iraq. She was married to Major General Ali Araji.
Document 11: Zaha Hadid: Dame Zaha Mohammad Hadid (Arabic: زها حديد‎ ‎ "Zahā Ḥadīd"; 31 October 1950 – 31 March 2016) was an Iraqi-British architect.
Document 12: César Pelli: César Pelli, founder of Pelli Clarke Pelli Architects, is an Argentine American architect who has designed some of the world's tallest buildings and other major urban landmarks. Some of his most notable contributions include the Petronas Towers in Kuala Lumpur and the World Financial Center in New York City. The American Institute of Architects named him one of the ten most influential living American architects in 1991 and awarded him the AIA Gold Medal in 1995. In 2008, the Council on Tall Buildings and Urban Habitat presented him with The Lynn S. Beedle Lifetime Achievement Award.
Document 13: Guangzhou Opera House Station: Guangzhou Opera House Station () is a metro station on the Zhujiang New Town Automated People Mover System in Guangzhou, China. It is located underground at the intersection of Huajiu Road (), Zhujiang East Road () and Zhujiang West Road (), to the northeast of Guangzhou Opera House. It started operation on 8 November 2010.
Document 14: Saeed Zahedi: Sir Mir Saeed Zahedi, OBE FREng RDI FIMechE PhD (born 23 May 1957) is a British-Iranian biomedical engineer and innovator who is currently the Technical Director at Chas A Blatchford & Sons. He was named Royal Designer for Industry in 2014 and knighted "for services to Engineering and Innovation" in 2017. He is one of the leading designers of prosthetics, best known for his work in the development of the world's first fully integrated, microprocessor controlled, lower limb system, Linx.
Document 15: Shanghai Opera House: Shanghai Opera House (; Shanghainese: Zånhae Gujihyu) is the official government-funded western-style opera company of Shanghai, China, and the resident opera company at the new Shanghai Grand Theatre (上海大剧院 "Shanghai Da Juyuan"). Although the term "Opera House" is often applied to the building, both in English and Chinese texts, officially the building is not an opera house and the term "Shanghai Opera House" properly applies only to the performing company, not the building, as is also true for its senior sister company, the China National Opera House (CNOH) in Beijing. The reason for the distinction is found in that the Chinese character "Yuan" (院) applies primarily to a school or institute or dramatic troupe rather than the building in which a school, institute or dramatic company resides.
ground_truth: Iraqi-British