Question: What is the tallest structure in the country where Sar is located?

full_context: Document 1: Dynamic Tower: The Dynamic Tower (also known as Dynamic Architecture Building or the Da Vinci Tower) is a proposed , 80-floor moving skyscraper, designed by architect David Fisher.
Document 2: Sarajevo International School: QSI International School of Sarajevo is an international school in Sarajevo, Bosnia and Herzegovina. The language of instruction is English. The curriculum is based on US National Standards with the addition of three foreign languages. The school is funded by tuition fees. Students range from 3 to 18 years of age. The school's Director is Gale Stubbs. The school is located in Vogošća, a quiet suburb of Sarajevo. It has approximately 150 students, representing 37 nationalities.
Document 3: International College, Beirut: International College (), Beirut, Lebanon, is an independent non-profit international school. Its students come from all over Lebanon, as well as the Middle-East and around the world. With two campuses, one in the Lebanese capital Beirut and the other in the urban hillsides (Ain Aar), the school educates over 3,500 students each year. The school was established in 1891 and is chartered in Massachusetts, US.
Document 4: Bahrain World Trade Center: The Bahrain World Trade Center (also called Bahrain WTC or BWTC) is a 240-metre-high (787 ft), 50-floor, twin tower complex located in Manama, Bahrain. Designed by the multi-national architectural firm Atkins, construction on the towers was completed in 2008. It is the first skyscraper in the world to integrate wind turbines into its design. The wind turbines were developed, built and installed by the Danish company Norwin A/S.The structure is constructed close to the King Faisal Highway, near popular landmarks such as the towers of Bahrain Financial Harbour (BFH), NBB and Abraj Al Lulu. It currently ranks as the second-tallest building in Bahrain, after the twin towers of the Bahrain Financial Harbour. The project has received several awards for sustainability, including:
Document 5: Economy of Bahrain: Bahrain has an open economy. The Bahraini currency is the second-highest-valued currency unit in the world. Since the late 20th century, Bahrain has heavily invested in the banking and tourism sectors. The country's capital, Manama is home to many large financial structures. Bahrain's finance industry is very successful. In 2008, Bahrain was named the world's fastest growing financial center by the City of London's Global Financial Centres Index. Bahrain's banking and financial services sector, particularly Islamic banking, have benefited from the regional boom driven by demand for oil. Petroleum production is Bahrain's most exported product, accounting for 60% of export receipts, 70% of government revenues, and 11% of GDP. Aluminium production is the second most exported product, followed by finance and construction materials.
Document 6: Marina One: Designed by Christoph Ingenhoven, Marina One covers a total gross floor area of approximately 3.67 million square feet. The development will include two 34-storey residential towers, two 30-storey prime grade A office towers and a retail podium, The Heart, which will feature lush greenery and landscaping by Gustafson Porter and ICN Design. Both were landscape architects behind Singapore's Gardens by the Bay in Marina South.
Document 7: Sixth form: In the education systems of England, Northern Ireland, Wales and some other Commonwealth countries, sixth form (sometimes referred to as Key Stage 5) represents the final 1 - 3 years of secondary education (high school), where students (typically between 16 and 18 years of age) prepare for their A-level (or equivalent) examinations.
Document 8: Montevideo: The Christian Brothers of Ireland Stella Maris College is a private, co-educational, not-for-profit Catholic school located in the wealthy residential southeastern neighbourhood of Carrasco. Established in 1955, it is regarded as one of the best high schools in the country, blending a rigorous curriculum with strong extracurricular activities. The school's headmaster, history professor Juan Pedro Toni, is a member of the Stella Maris Board of Governors and the school is a member of the International Baccalaureate Organization (IBO). Its long list of distinguished former pupils includes economists, engineers, architects, lawyers, politicians and even F1 champions. The school has also played an important part in the development of rugby union in Uruguay, with the creation of Old Christians Club, the school's alumni club.
Document 9: Burj Khalifa: The Burj Khalifa (Arabic: برج خليفة ‎, Arabic for ``Khalifa Tower ''; pronounced English: / ˈbɜːrdʒ kəˈliːfə /), known as the Burj Dubai before its inauguration in 2010, is a skyscraper in Dubai, United Arab Emirates. With a total height of 829.8 m (2,722 ft) and a roof height (excluding antenna) of 828 m (2,717 ft), the Burj Khalifa has been the tallest structure in the world since its topping out in late 2008.
Document 10: Grattacielo Intesa Sanpaolo: Renzo Piano, Grattacielo Intesa Sanpaolo's architect, described the skyscraper as "bioclimatic building", being naturally ventilated and cooled; with a substantial amount of its power requirement to be generated from photovoltaic panels that cover the southern façade. It was awarded the LEED Platinum rating, making it the only high-rise building in Europe to hold such a certification.
Document 11: St. Christopher's School, Bahrain: St Christopher's School is a British private school located in Isa Town, Bahrain (senior campus) and Sar, Bahrain (infant and junior campuses), offering British curriculum education. It offers primary to secondary education ranging from reception to Sixth form. Students sit GCSE and A-level examinations.
Document 12: English School Fahaheel Kuwait: The English School Fahaheel Kuwait is a co-educational day school located in Mangaf, Kuwait, that was founded in 1968. The school is open to students from 4 to 18 years of age. Apart from a school opened by the Kuwait Oil Company for the children of its employees, (which closed two years after The English School Of Fahaheel Kuwait was founded) it was the first school in South Kuwait to provide English education. The chairman of the school is Ibrahim Shuhaiber and the current principal is Russell Dunlop.
Document 13: Gate of Europe: The Gate of Europe towers were designed by the American architects Philip Johnson and John Burgee, built by Fomento de Construcciones y Contratas and commissioned by the Kuwait Investment Office (hence their initial name ""Torres KIO"" or "KIO Towers"). Leslie E. Robertson Associates, RLLP New York (LERA) provided structural engineering services. Each building is 115 m tall with an inclination of 15°, making them the first inclined skyscrapers in the world. They are located near the Chamartín railway station, on the sides of the "Plaza de Castilla" bus station, north from the "Paseo de la Castellana" and near the Cuatro Torres Business Area (CTBA).
Document 14: Eswatini: The secondary and high school education system in Swaziland is a five-year programme divided into three years junior secondary and two years senior secondary. There is an external public examination (Junior Certificate) at the end of the junior secondary that learners have to pass to progress to the senior secondary level. The Examination Council of Swaziland (ECOS) administers this examination. At the end of the senior secondary level, learners sit for a public examination, the Swaziland General Certificate of Secondary Education (SGCSE) and International General Certificate of Secondary Education (IGCSE) which is accredited by the Cambridge International Examination (CIE). A few schools offer the Advanced Studies (AS) programme in their curriculum.
Document 15: World Port Center: World Port Centre is a 33-storey, skyscraper in Rotterdam, Netherlands. The tower was commissioned by ING Real Estate Development. The building costs amounted to approximately NLG100 million. The Port of Rotterdam Authority is the main occupant of the WPC, using floors 2 to 19. Floors 25 to 28 are rented to Eneco Energie, floors 29 to 32 are built as conference areas and are commercially leased to Regus. The grounds also cover the Argentine steak-restaurant Gaucho's.
ground_truth: the twin towers of the Bahrain Financial Harbour
sub_queries: Sar >> country Answer: Bahrain
what is the tallest structure in Bahrain ? Answer: the twin towers of the Bahrain Financial Harbour