Question: Which tennis player played for Zimbabwe, Byron Black or Onny Parun? 

Context paragraphs:
1976 New Zealand Open: The 1976 New Zealand Open was a men's professional tennis tournament held in Auckland, New Zealand.  It was an independent event, i.e. not part of the 1976 Grand Prix or 1976 World Championship Tennis circuit.  The tournament was played on outdoor hard courts and was held from 5 January to 11 January 1976.  Onny Parun won the singles title.

1975 New Zealand Open: The 1975 New Zealand Open, also known as Benson and Hedges Open for sponsorship reasons, was a professional men's tennis tournament held in Auckland, New Zealand.  It was an independent event, i.e. not part of the 1975 Grand Prix or 1975 World Championship Tennis circuit.  The tournament was played on outdoor grass courts and was held from 6 January through 12 January 1975.  First-seeded Onny Parun won the singles title.

Pam Teeguarden: Pam Teeguarden (born April 17, 1951) is a former American professional tennis player in the 1970s and 1980s, ranked in the top 20 from 1970–1975, according to "John Dolan's Women's Tennis Ultimate Guide", prior to computer rankings.  She won two Grand Slam Doubles Titles and was a quarter finalist in singles at the U.S. Open and The French Open.  Her father Jerry, a well known coach, helped Margaret Court win the coveted Grand Slam (all four Grand Slam titles in one year) in 1970 and Virginia Wade to her 1977 Wimbledon triumph.  Teeguarden was voted the "Most Watchable Player" based on play and appearance by a group of Madison Avenue advertising executives or "Mad Men" while playing at the US Open.  Teeguarden played in 19 consecutive US Opens, holding the record until Chris Evert played in 20.  She wore the first all black outfit in the history of tennis in 1975 at The Bridgestone Doubles Championships in Tokyo, starting a trend that is still popular today.  Teeguarden was the first woman tennis player signed by Nike.  She played on the victorious Los Angeles Strings Team Tennis team in 1981 and won the Team Tennis Mixed Doubles Division with Tom Gullikson in 1977; they were also runners-up in the league that year.

Onny Parun: Onny Parun {'1': ", '2': ", '3': ", '4': "} (born 15 April 1947) is a former tennis player of Croatian descent from New Zealand, who was among the world's top 20 for five years and who reached the quarterfinals at Wimbledon in 1971 and 1972.  He made the final of the Australian Open in 1973, losing to John Newcombe in four sets, and was a US Open quarterfinalist in 1973 and also a quarterfinalist at the French Open in 1975.

1973 New Zealand Open: The 1973 New Zealand Open, also known as Benson and Hedges Open for sponsorship reasons, was a combined men's and women's professional tennis tournament held in Auckland, New Zealand.  It was an independent event, i.e. not part of the 1973 Grand Prix or 1973 World Championship Tennis circuit.  The tournament was played on outdoor grass courts and was held from 8 to 14 January 1973.  Onny Parun and Evonne Goolagong won the singles titles.

Tony Parun: Tony Parun (born 24 August 1949) is a former professional tennis player from New Zealand.

Takanyi Garanganga: Takanyi Garanganga (born 5 September 1990) is a professional Zimbabwean tennis player.  He was born in Mbare, Zimbabwe, a suburb of Harare, and began playing tennis at the age of 8.  He is currently the top-ranked player from Zimbabwe.

Byron Black: Byron Black (born 6 October 1969 in Harare, Zimbabwe) is a former touring professional tennis and Davis Cup player for Zimbabwe.

Hélder Muianga: Hélder Carlos "Mano-Mano" Muianga (born 28 September 1976 in Maputo) is a retired Mozambican football player played in Mozambique for Costa do Sol and Desportivo de Maputo, in South Africa for Manning Rangers, Black Leopards, Dynamos FC and Jomo Cosmos, and in Hungary for Budapest Honvéd.  Muianga also won 30 caps for the Mozambican national side between 1997 and 2004.

1974 Indian Open: The 1974 Indian Open was a men's tennis tournament played on outdoor clay courts in Bombay, India.  It was the second edition of the event and was held from 11 November through 17 November 1974.  The tournament was part of the Grand Prix tennis circuit and categorized in Group B. Third-seeded Onny Parun won the singles title.

Supporting paragraphs: Byron Black Onny Parun
Answer: Byron Black