question: Which news agency is headquartered in capital of Zambia?
answer: Mwebantu
context: Title: Lusaka
  Passage: Lusaka is the capital and largest city of Zambia.  One of the fastest developing cities in southern Africa, Lusaka is in the southern part of the central plateau at an elevation of about 1279 m .  s of 2010 , the city's population was about 1.7 million, while the urban population is 2.4 million.  Lusaka is the centre of both commerce and government in Zambia and connects to the country's four main highways heading north, south, east and west.  English is the official language of the city, but Nyanja and Bemba are also common.
  Title: Lusa News Agency
  Passage: The Lusa News Agency (Portuguese: "Lusa – Agência de Notícias de Portugal, SA" ), literally "Lusa - Portuguese News Agency", is the largest Portuguese news agency, incorporated on 28 November 1986.  under the name of "Agência Lusa — Cooperativa de Interesse Público de Responsabilidade Limitada" ("Lusa Agency - Public Interest Cooperative with Limited Liability") or simply "Lusa - CIPRL", following the extinction of the earlier Portuguese news agency "ANOP Agência Noticiosa Portuguesa" ("Portuguese Newsy Agency").  Lusa is a member of, and participates in, the "Agência Europeia de Fotografia" ("EPA European Pressphoto Agency").
  Title: Ghana News Agency
  Passage: The Ghana News Agency (GNA) is the official news agency of the country of Ghana.  It was founded in 1957 by Kwame Nkrumah as part of a "network of coercive and partisan institutions," in a concerted effort to present a more favorable view of the country to the outside world and to control the flow of information nationally. " The New York Times" reported in 1964 that most of the agency's news came from Reuters (it had "only a few correspondents abroad"); the agency functioned as a gatekeeper in that it disseminated international news to the Ghanaian press, and deleted any international news critical of the Ghanaian leadership immediately, thus preventing such news from reaching the country's newspapers and radio stations.  Until the rise of the Pan African News Agency, the GNA was considered one of the most efficient news agencies in Africa, spreading what Nkrumah called the "clear ideology of the African Revolution" and contributing to "African and Ghanaian emancipation."
  Title: Lusaka Voice
  Passage: Lusaka Voice is a Zambian online news agency.  The news agency was created in 2012 and is still currently active, posting local and international stories daily.  Lusaka Voice is the first Zambian news agency to provide Live Streaming of events in Zambia.  Some events that have been covered include various Motor Rallies within Zambia, as well as other sporting events.
  Title: Wafa
  Passage: Wafa (Arabic: وفا, acronym of وكالة الأنباء الفلسطينية, meaning 'Palestine News Agency'‎ ‎ ), also known as the Palestine News Agency and the Palestinian News & Info Agency, is the news agency of the Palestinian National Authority, and was "the P.L.O.'s news agency" in the years before the formation of the PA.
  Title: Mwebantu
  Passage: Mwebantu is a national news agency headquartered in Lusaka and is the leading online news website and social media platform in Zambia.  Mwebantu.com is their flagship website which is an online based news publication catering for local Zambians and those in the diaspora.
  Title: Zambian News Agency
  Passage: Zambia News Agency also known as ZANA was the official Zambian news agency.  It was established in 1969, and had its headquarters in Lusaka and branches all over Zambia.  In 2005, ZANA was merged with the Zambia Information Services (ZIS) to form the Zambia News and Information Services (ZANIS), a public relations public media organisation under the Zambian Ministry of Information, Broadcasting Services and Tourism.
citations: Lusaka Mwebantu