Question: What 4x100 metres relay sprinter won a bronze at the British Commonwealth Games in Edinburgh, Scotland? 
Context: Brian Green (born 15 May 1941 in Ormskirk) is a British former sprinter who competed in the 1972 Summer Olympics.  He was a bronze medallist at the 1970 British Commonwealth Games in the 4×100 metres relay. At the 1970 British Commonwealth Games, the athletics events were held at the Meadowbank Stadium in Edinburgh, Scotland.  A total of 36 events were contested, of which 23 by male and 13 by female athletes.  This was the first athletics competition at the British Commonwealth Games to feature events in metric units, rather than imperial units.  Two Games records were broken at the competition. Andrea Irmgard Thomas, née Bersch (born 9 March 1963 in Güls) is a retired German sprinter who specialized in the 200 metres.  At the 1987 World Championships in Athletics in Rome she finished fourth in 4x100 m relay for West Germany.  At the 1988 Summer Olympics in Seoul she finished fourth in 4x100 m relay and 4x400 m relay.  At the 1990 European Championships in Athletics in Split she won a silver medal in 4x100 m relay for West Germany together with Gabi Lippe, Ulrike Sarvari and Silke Knoll.  In addition she finished eighth in 200 metres and fourth in 4x400 m relay. Bohdan "Don" Domansky (born August 11, 1946 in Ulm, Germany) is a retired track and field athlete, who represented Canada at two Summer Olympics (1968 and 1976), two British Commonwealth Games (1966 and 1970) and two Pan Am Games in 1967 and 1975 in the 400 metres and the 4x400 metre relay.  He won medals at the British Commonwealth Games (silver 1966 4x400 metre relay, bronze in 1966 400 metres, medals at the Pan Am Games (silver in 1975 4x400 metre relay, bronze in 1967 400 metres) and achieved a 4th in the 4x400 metres in the Olympics in 1976.  As member of the UCLA (University of California, Los Angeles) Don was a team NCAA champion, 4x400 metre NCAA champion and was a world record holder in the 440 yard relay in 1966.  He held the Canadian individual open record in the 400 metres from 1967 to 1977 and helped set the Canadian 4x400 metre record in 1976 which still stands today.  Track and Field News ranked him 4th in the world in the 400 metres in 1967.  His fastest performance was a 44.3 400 metre relay split in the 1966 British Commonwealth Games. Dipna Lim Prasad (born 7 June 1991) is a Singaporean sprinter and hurdler, who competes internationally for Singapore.  At the 2012 Summer Olympics, she competed in the Women's 100 metres hurdles.  Dipna specialises in the 100 metres hurdles but also competes in the 100 metres, 200 metres, 400 metres hurdles, 4x100 metres relay, and 4 x 400 metres relay. Ali DeLoof is an American swimmer specializing in backstroke.  She is the world record holder in the 4×50 m medley relay.  During the 2016 FINA Short Course Worlds in Windsor, Canada, she won gold medals in the 4x50 and 4x100 metres medley relays, and won a gold medal as a prelim swimmer in the 4x100 metres freestyle relay.  She also won bronze in the 50 metres backstroke, and placed sixth in the 100 metres backstroke. Christine Arron (born 13 September 1973) is a former track and field sprinter, who competed internationally for France in the 60 metres, 100 metres, 200 metres and the 4x100 metres relay.  As of 2017, she is the world's sixth-fastest female 100 metres sprinter of all time with 10.73 secs, which is still the European record.  She set the record when winning at the 1998 European Championships, where she also won a gold medal in the 4 x 100m relay.  Also in the relay, she is a 2003 World Championship gold medallist and a 2004 Olympic bronze medallist. Angela Williams (born May 15, 1965 in Laventille, Trinidad) is a retired track and field sprinter.  She began running at age 10 after her family moved to Brooklyn, New York.  A highly recruited high school athlete, she ran first for Tennessee State University, then later Seton Hall University.  She opted to run internationally for her native Trinidad and Tobago, getting her first taste of international competition while still in high school at the 1982 Central American and Caribbean Games, winning a gold medal in the 4x100 metres relay and an individual silver medal in the 200 metres, Later that year she also ran at the 1982 Commonwealth Games, the relay team finishing in 6th place.  The next year she also ran the 200 and anchored the relay at the 1983 Pan American Games, winning a silver medal in the 4 x 100 metres.  And as a 19 year old seasoned veteran, anchored their team in the 4x100 metres relay at the 1984 Olympics.  She also ran in the 100 metres making it to the quarterfinal round, but well behind the three American sprinters, Evelyn Ashford Alice Brown would win the Gold and Silver and later set the world record in the relay.  She was the third fastest Angela in the 100 metres after Canadians Angela Bailey and Angella Taylor.  Four years later she ran in the 1988 Olympics again making it to the quarter final round in the 100 metres before being eliminated behind eventual silver medalist Ashford and again behind Bailey and Taylor now named Issajenko.  In the 200 metres she also made it to the quarter final round. Ayodelé Ikuesan (born 15 May 1985 in Paris) is a French sprinter who specialises in the 60 metres and 4x100 metres relay.  Ikuesan won the 4 × 100 m relay gold medal at the 2009 Mediterranean Games.  She competed in the 60m at the 2009 European Athletics Indoor Championships, the 4 × 100 m relay at the 2011 and 2013 World Championships, the 4 × 100 m relay at the 2008 and 2012 Olympic Games. Elaine Thompson (born 28 June 1992) is a Jamaican track and field sprinter.  She rose to prominence as part of the gold medal-winning team in the 4x100 metres relay at the 2015 World Championships, where she also won a silver medal in the 200 metres.  At the 2016 Olympic Games in Rio de Janeiro, Thompson completed a rare sprint double when she won gold in the 100m (with a time of 10.71 s) and the 200m (21.78 s), becoming the first female sprinter to do so since Florence Griffith Joyner at the Seoul Olympics in 1988.  Thompson currently ranks as the fifth-fastest woman ever in the 200 metres event and tied fourth-fastest in the 100 metres.
Answer: Brian Green