Question: Benjamin Ucuahamba, better known as Benjamin Avô, is a former Angolan basketball player, was born in Luanda, the capital and largest city in which country, and the country's most populous and important city, primary port and major industrial, cultural and urban centre?
Context: Benjamim João Romano (born 19 August 1969 in Luanda) is a former Angolan basketball player.  Romano played with the Angola national basketball team at the 1992 and 1996 Summer Olympics.  In the 1992 Olympics, he appeared in one game and did not score a point.  In the 1996 games, Romano played six games, scoring 14 points.  On the club level, he played for Petro Atlético. Luanda, formerly named São Paulo da Assunção de Loanda, is the capital and largest city in Angola, and the country's most populous and important city, primary port and major industrial, cultural and urban centre.  Located on Angola's coast with the Atlantic Ocean, Luanda is both Angola's chief seaport and its administrative centre.  It has a metropolitan population of over 6 million.  It is also the capital city of Luanda Province, and the world's fourth most populous Portuguese-speaking city, behind only São Paulo, Rio de Janeiro, and Salvador, Bahia all in Brazil, and the most populous Portuguese-speaking capital city in the world, ahead of Brasília, Maputo and Lisbon. Justino Monteiro dos Santos Victoriano best known as Puna Victoriano, (born 19 February 1974) is a former Angolan basketball player.  Puna, a 6'7" / 220lb Center born in Luanda, he played for Angola at the 1996 Summer Olympics and 1999 Afrobasket.  On the club level, he played for Petro Atlético. Carlos António Dinis, (born April 4, 1966 in Luanda), is an Angolan basketball head coach.  He is a brother of former Angolan football player Joaquim Dinis. Garcia João dos Santos Domingos (born 12 May 1971 in Luanda) is a former Angolan basketball player.  He competed at the 2000 Summer Olympics with the Angola national basketball team. Gustavo Dias Vaz da Conceição (born 8 March 1957 in Luanda) is a former Angolan basketball player.  Conceição, a small forward, competed for Angola at the 1980 Africa Basketball championship, an event that marked Angola's debut in the African competition arena and at the 1986 FIBA World Championship. Benjamin Ucuahamba (born April 27, 1965 in Luanda), better known as Benjamin Avô, is a former Angolan basketball player.  He was listed at 6’0” and 180 pounds. José Carlos Ribeiro de Carvalho Guimarães (born 9 April 1964 in Luanda), known as Zé Carlos, is a former Angolan basketball player and a former coach of the Angola national basketball team.  He played as a guard and as a forward. Manuel da Ressurreição Figueiredo da Silva, nicknamed Gi, (born 27/04/68 in Luanda), is a former Angolan basketball player and a current basketball coach.  At club level, Gi has been leading a reorganization effort of basketball at Clube Ferroviário de Luanda.  In 2013, he has been appointed head coach of Angola's under-16 national basketball team.  Following up to the success, he was appointed head coach of the U18 squad, two years later. Aníbal de Jesús Moreira (born 17 September 1966 in Luanda) is a former Angolan basketball player.  He competed at the 1992, 1996 and 2000 Summer Olympics with the Angola national basketball team.  He is the current coach of the Angola women's national basketball team and of Angola women's side Primeiro de Agosto.
Answer: Angola