Question: What is the tallest structure in the country where the village of Eker is found?

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: Askar, Bahrain: Askar () is a village on the south eastern coast of Bahrain. It is also home to the shrine of Sa'sa'a bin Sohan, a companion of Imam Ali. Inhabitants today include the Al-Buainain and Al-Kaabi tribes.
Document 3: Al Markh: Al Markh () is one of the oldest and smallest villages of Bahrain. It neighbors Budaiya highway and the village of Duraz to the north, Saar and Magaba highway to the east, the villages of Bani Jamra and Al Garya to the west, and the village of Saar to the south.
Document 4: Siege of Eker: The Siege of Eker refers to the Bahraini security forces imposing a lockdown of the village of Eker, situated about 20 km south of the capital Manama, Bahrain.
Document 5: 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 6: Manama incident: The Manama incident on August 26, 2010 involved the arrest in the Seef shopping mall in Manama, Bahrain, of Fakhria al-Singace, the sister of Dr Abdul Jalil Al-Singace, human-rights spokesperson for the Bahrain opposition Haq Movement. According to "The New York Times", three women wearing the niqāb and abaya entered the mall and unfurled a banner reading, "It is forbidden to arbitrarily arrest and detain people". More than a dozen plain-clothes and uniformed police officers surrounded them, and Fakhria al-Singace was handcuffed and arrested after being pinned spread-eagled to a cafe table. She was released the next day.
Document 7: 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 8: 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 9: 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.
Document 10: Barbar, Bahrain: Barbar () is a village in the north of Bahrain. It lies between Diraz and Jannusan. The Dilmun era Barbar Temple is located near the village.
Document 11: A'ali: A'ali () is one of the biggest towns in Bahrain. It was part of the municipality of Mintaqah although from 2001 to 2014 it lay within the Central Governorate. It is a part of the Northern Governorate. A'ali is famous for its ancient burial mounds, especially several very large burial mounds in the city centre. A'ali is also famous for its traditional handcrafted pottery, which can be seen and bought from different potters and boutiques in the town.
Document 12: Malkiya, Bahrain: Malkiya () is a coastal village that lies on the western coast of Bahrain Island in Bahrain. The village is home to the Malkiya Club football team.
Document 13: Fareej el-Hatab: Fareej el-Hatab (Arabic: فريج الحطب، Fareej el-Hatab) is an old district close to the Manama Souq, in the heart of Manama in the Kingdom of Bahrain. It is located adjacent to Fareej el-Makharqa. Along with the other districts in the souq, it formed the core districts of Manama prior to the expansion of the city in the 20th century.
Document 14: 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 15: 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).
ground_truth: the twin towers of the Bahrain Financial Harbour
sub_queries: Eker >> country Answer: Bahrain
what is the tallest structure in Bahrain ? Answer: the twin towers of the Bahrain Financial Harbour