Question: What is the capital of the province which the Washir District is located within?

full_context: Document 1: Panjwayi District: Panjwayi (also spelled Panjwaye, Panjwaii, Panjway, Panjwa'i, or Panjwai) is a district in Kandahar Province, Afghanistan. It is widely considered the spiritual home of the Taliban and is located about 35 km west of Kandahar. The district borders Helmand Province to the southwest, Maywand District to the west, Zharay District to the north, Arghandab, Kandahar and Daman districts to the east and Reg District to the south. The population was around 77,200 in 2006, most of which are peasants and poorly educated due to non-availability of schools. The district center is Bazar-e Panjwayi, located in the northern part of the district. The area is irrigated by the Helmand and Arghandab Valley Authority.
Document 2: Helmand and Arghandab Valley Authority: The Helmand and Arghandab Valley Authority (HAVA) based in Lashkar Gah, Afghanistan, originally named the Helmand Valley Authority (HVA) until its expansion in 1965, was established on December 4, 1952 as an agency of the Afghan Government. The agency was modelled on the Tennessee Valley Authority in the United States, with a remit covering lands in Farah Province, Ghazni Province, Helmand Province, Herat Province, and Kandahar Province.
Document 3: Kandahar: Kandahar ( ) or Qandahar (Pashto: کندهار‎ "Kandahār" ; Dari: قندهار‎ ‎ "Qandahār" , known in older literature as Candahar) is the second-largest city in Afghanistan, with a population of about 491,500 as of 2012 . Formerly called Alexandria Arachosia, the city is named after Alexander the Great, who founded it in 329 BC around a small ancient Arachosian town. Kandahar is the capital of Kandahar Province, located in the south of the country at an altitude of 1,010 m above sea level. The Arghandab River runs along the west of the city. The city of Kandahar has a population of 557,118. It has 15 districts and a total land area of 27,337 hectares. The total number of dwellings in Kandahar is 61,902.
Document 4: Sangin District: Sangin is a district in the east of Helmand Province, Afghanistan. Its population was reported at 58,100 in 2012, all of which belong to Pashtun ethnic group. The district centre is the town of Sangin. The area is irrigated by the Helmand and Arghandab Valley Authority.
Document 5: Washir District: Washir (also spelt Washer or Washar) is a district in the west of Helmand Province, Afghanistan. Its population was reported in 2012 as 15,200, which all belong to the Pashtun ethnic group and are believed to be of Noorzai tribe. The district centre is the village of Washir. The district of Washer borders Farah province to the north and is 80 kilometres south of Lashkar Gah.
Document 6: Kajaki Dam: The Kajakai Dam is one of the two major hydroelectric power dams of Helmand province in southern Afghanistan. The dam is located on the Helmand River 100 miles (161 km) north-west of Kandahar and is operated by the Helmand and Arghandab Valley Authority. It has a dual function, to provide electricity and to irrigate some 650,000 acres (1800 km²) of an otherwise arid land. Water discharging from the dam traverses some 300 miles (500 km) of downstream irrigation canals feeding farmland. It currently produces 33 megawatts of electricity.
Document 7: Hesa Duwum Kohistan District: Hesa Duwum Kohistan District is a district in the southern part of Kapisa Province, Afghanistan. The center is the village of Keshektan. The population is 39,900 (2006) and is mostly composed of Tajik. The district is famous for its sweet mulberries, grapes, apricots and pomegranates. Yearly, hundreds of visitors spend their weekends along the Kohistan river that flows into Surobi lake. During the war against USSR, Kohistani was one of the headquarters for Mujahidin. Kohistan is located at the crossroots with Parwan and Panjshir provinces.
Document 8: Geography of Afghanistan: Afghanistan is a landlocked mountainous country located within South Asia and Central Asia. The country is the 40th largest in the world in size. Kabul is the capital and largest city of Afghanistan, located in the Kabul Province. Strategically located at the crossroads of major trade routes, Afghanistan has attracted a succession of invaders since the sixth century BCE.
Document 9: Washir: Washir (Vashir) is a village located at at 1,155 m altitude in a hilly area. It is the district center of Washir District, Helmand Province, Afghanistan.
Document 10: Daman District, Afghanistan: Daman district is situated in the central part of the Kandahar Province, Afghanistan. It borders Panjwai and Kandahar districts to the west, Shah Wali Kot District to the north, Zabul Province to the northeast, Arghistan and Spin Boldak districts to the east and Reg District to the south. The population is 30,700 (2006). The center is the village of Daman, located in the central part of the district. The area is irrigated by the Helmand and Arghandab Valley Authority.
Document 11: Districts of Afghanistan: This is a list of districts of Afghanistan, known as "wuleswali" (Pashto: ولسوالۍ‎ or "wuləswāləi"; Persian: شهرستان‎ ‎ ), which are one level below the provinces. The number of districts has fluctuated over the years, with new districts created by splitting or merging parts of others. Prior to 1979, there were 325 districts but a major reorganization in 2004 led to the number increasing to 397. As of June 2005, the Afghan Ministry of the Interior recognised 398 districts, divided between the 34 provinces. This number is expected to change with further administrative reorganization.
Document 12: Helan, Mandi Bahauddin: Helan (or Helaan) is a village and union council in Phalia Tehsil, Mandi Bahauddin District, Punjab province, Pakistan. The union council contains 10 villages (Helan, Charanwala, Burje, Kotli Qazi, Qutli, Dhingranwali, Binder Khurd, Rajoya, Saida Chak, Heger). Helan is 20 kilometers south-east of Mandi Bahauddin, 8 kilometers north-east of Phalia, 20 kilometers south of Dinga and 4 kilometers north of Mano Chak.
Document 13: Camp Leatherneck: Camp Leatherneck is a 1,600 acre Afghan Armed Forces base in Helmand Province, Afghanistan. The site is mostly in Washir District and is conjoined with Camp Bastion, the main British military base in Afghanistan.
Document 14: Helmand Province: Helmand ( ; Pashto/Dari: هلمند), also known as Hillmand, and, in ancient times, as Hermand and Hethumand is one of the 34 provinces of Afghanistan, in the south of the country. It is the largest province by area, covering 58,584 km2 area. The province contains 13 districts, encompassing over 1,000 villages, and roughly 879,500 settled people. Lashkar Gah serves as the provincial capital.
Document 15: Maidan Wardak Province: Maidan Wardak Province (Pashto: د ميدان وردګو ولايت‎ , Persian: ولایت میدان وردک‎ ‎ ), also called Maidan Wardag or simply Wardak Province, is one of the 34 provinces of Afghanistan, located in the central east region of Afghanistan. It is divided into eight districts and has a population of approximately 567,600. The capital of the province is Maidan Shar. The province is named after the Pashtun tribe of Wardak.
ground_truth: Lashkar Gah