Question: What former British record holder in the 100 metres hurdles also won a medal at the 2004 Commonwealth Youth Games?

Context articles: 100 metres hurdles
110 metres hurdles
India at the 2011 Commonwealth Youth Games
Malaysia at the 2011 Commonwealth Youth Games
Lloyd Cowan
Bangladesh at the 2011 Commonwealth Youth Games
Cornelia Oschkenat
Athletics at the 2004 Commonwealth Youth Games
Jessica Ennis-Hill
Dipna Lim Prasad

The 100 metres hurdles, or 100-meter hurdles, is a track and field event run mainly by women (the male counterpart is the 110 metres hurdles).
 For the race, ten hurdles of a height of 83.8 cm are placed along a straight course of 100 m .
 The first hurdle is placed after a run-up of 13 metres from the starting line.
 The next 9 hurdles are set at a distance of 8.5 metres from each other, and the home stretch from the last hurdle to the finish line is 10.5 metres long.
 The hurdles are set up so that they will fall over if bumped into by the runner, but weighted so this is disadvantageous.
 Fallen hurdles do not count against runners provided that they do not run into them on purpose.
 Like the 100 metres sprint, the 100 m hurdles begins with athletes in starting blocks.
The 110 metres hurdles, or 110-meter hurdles, is a hurdling track and field event for men.
 It is included in the athletics programme at the Summer Olympic Games.
 The female counterpart is the 100 metres hurdles.
 As part of a racing event, ten hurdles of 1.067 metres (3.5 ft or 42 inches) in height are evenly spaced along a straight course of 110 metres.
 They are positioned so that they will fall over if bumped into by the runner.
 Fallen hurdles do not carry a fixed time penalty for the runners, but they have a significant pull-over weight which slows down the run.
 Like the 100 metres sprint, the 110 metres hurdles begins in the starting blocks.
India competed at the 2011 Commonwealth Youth Games (officially known as the IV Commonwealth Youth Games) held in the Isle of Man from 7 to 13 September 2011.
 India has participated in all the editions of the Commonwealth Youth Games.
 The nation was represented by the Indian Olympic Association, which is responsible for the Commonwealth Games and Commonwealth Youth Games in India.
Malaysia participated in the 2011 Commonwealth Youth Games held in the British Crown Dependency of Isle of Man from 7 to 13 September 2011.
 Their participation marked their fourth Commonwealth Youth Games appearance, one of the highest among the Commonwealth of Nations.
 Malaysia was represented by the Olympic Council of Malaysia, which is responsible for Malaysian participation in the multi-sport events, including Commonwealth Games and Commonwealth Youth Games.
 Malaysian delegation consisted of 18 athletes competed in four different sports— athletics, badminton, cycling, and swimming.
 This was an increase in the number of athletes from the nation's last appearance at the Games, when 10 athletes were sent to the 2008 Commonwealth Youth Games in Pune.
 Malaysia dominated in the badminton events, winning all but one of the five gold medals on offer, the only other gold was won by P. V. Sindhu of India in women's singles.
 All the medals came from badminton.
Lloyd Cowan (born 8 July 1962) is a former British track and field athlete, who specialised in the 110 and 400 metres hurdles.
 He was selected for the 1984 Los Angeles Olympics, but he could not go because of illness; competed at the 1994 Commonwealth Games and won his last medal at the AAA nationals in 1999.
 He retired from athletics at the age of 39 and now coaches 18 athletes, including Christine Ohuruogu, the former 400 metres Olympic, World and Commonwealth Champion; Simeon Williamson, the former British 100 metres champion; and Andy Turner, the former European and Commonwealth 110 metres hurdles champion.
Bangladesh competed in the 2011 Commonwealth Youth Games (officially known as the IV Commonwealth Youth Games) held in the Isle of Man from 7 to 13 September 2011.
 This was their second appearance in the Commonwealth Youth Games.
 The nation was represented by the Bangladesh Olympic Association, which is responsible for the Commonwealth Games and Commonwealth Youth Games in Bangladesh.
Cornelia Oschkenat, (née Riefstahl, born 29 October 1961) is a German former track and field athlete who represented East Germany.
 She competed at the 1988 Olympic Games in Seoul.
 At the 1987 World Championships in Rome, she won a bronze medal in the 100 metres hurdles with a time of 12.46s as well as silver medal as a member of the East German 4 × 100 metres relay team.
 She also won the 1987 World Indoor 60 m hurdles title, two World Cup 100m hurdles titles and three European Indoor 60 m hurdles titles.
 Her world indoor record for the 50 metres hurdles of 6.58 secs in 1988, still stands (as of 2016).
At the 2004 Commonwealth Youth Games, the athletics events were held at the La Trobe University Athletics Complex in Bendigo, Australia from 2–3 December.
 A total of 34 events were contested, divided equally between the sexes.
 Among the medallists on the girls' side were Dani Samuels (the 2009 discus world champion) and two 2012 Olympic champions, Sally McLellan (100 m hurdles) and Jessica Ennis (heptathlon).
Dame Jessica Ennis-Hill DBE (born 28 January 1986) is a retired British track and field athlete from England, specialising in multi-eventing disciplines and 100 metres hurdles.
 As a competitor in heptathlon, she is the 2012 Olympic champion, a three-time world champion (2009, 2011, 2015), and the 2010 European champion.
 She is also the 2010 world indoor pentathlon champion.
 A member of the City of Sheffield & Dearne athletic club, she is the current British national record holder for the heptathlon.
 She is a former British record holder in the 100 metres hurdles, the high jump and the indoor pentathlon.
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.