Question: Ross Murdoch was teammates with the competitive swimmer who specializes in which event?
Context: Susan Estelle Sloan (born April 5, 1958), later known by her married name Susan Kelsey, is a Canadian former competitive swimmer.  Sloan won a bronze medal at the 1976 Summer Olympics in Montreal, by swimming the butterfly leg for the third-place Canadian team in the women's 4x100-metre medley relay, together with teammates Wendy Hogg (backstroke), Robin Corsiglia (breaststroke), and Anne Jardin (freestyle).  At the 1978 World Championships in Berlin, she and her Canadian teammates won a bronze medal in the 4x100-metre freestyle relay. Ross Murdoch (born 14 January 1994) is a Scottish competitive swimmer who has represented Great Britain in the Summer Olympics, the FINA world championships and the LEN European championships, and Scotland in the Commonwealth Games.  Murdoch won the gold medal in the 200 metre breaststroke at the 2014 Commonwealth Games in Glasgow, beating favourite, Olympic silver medalist and fellow Scot Michael Jamieson.  In 2015, he formed part of the Great Britain squad that won gold in the mixed 4 x 100 metre medley relay at the 2015 World Aquatics Championships, swimming in the qualifying heats, and adding a relay world title to the individual bronze won days earlier in the men's 100 metre breaststroke behind teammate Adam Peaty.  In 2016, he qualified for the 100m breaststroke for the Great Britain team in the 2016 Summer Olympics in Rio de Janeiro.  He later won his first European title with a gold medal in the 200 metre breaststroke, also picking up a silver medal in the 100 metre breaststroke silver medal behind teammate Adam Peaty and a bronze medal in the 50 metre breaststroke. Audrey Lacroix (born November 17, 1983) is a retired Canadian competitive swimmer from Montreal, Quebec.  She is the Canadian record-holder in the 200-metre butterfly (short-course and long-course).  She is a former world record-holder in the short-course 4x100-metre medley relay along with teammates Katy Murdoch, Annamay Pierse and Victoria Poon.  She was a member of the Canadian team that finished 8th in the 4x100-metre freestyle relay and in 7th place in the 4x100-metre medley relay at the 2008 Summer Olympics.  She won the gold medal in 200-metre butterfly at the 2014 Commonwealth Games.  and a bronze in the women's 4x100-metre medley relay.  She also swam in the 100-metre butterfly final, finishing seventh with a time of 58.78. Anže Tavčar (born 2 December 1994) is a Slovenian competitive swimmer, who specializes in sprint freestyle events.  At the 2016 Summer Olympics he competed in the men's 100 meter freestyle and men's 200 meter freestyle.  His career's most notable performance remains 100 meters freestyle at the 2016 LEN European Aquatics Championships where he, with the time of 0:48.88, became the first Slovenian swimmer as well as the first Indiana Hoosier to break the 49 second barrier. César Augusto Cielo Filho (] , born 10 January 1987) is a Brazilian competitive swimmer who specializes in sprint events.  He is the most successful Brazilian swimmer in history, having obtained three Olympic medals, winning six individual World Championship gold medals and breaking two world records. Sun Yang (; ; born 1 December 1991) is a Chinese Olympic and world-record-holding competitive swimmer.  In 2012, he became the first Chinese man to win an Olympic gold medal in swimming.  Sun is the first male swimmer in history to earn Olympic and World Championship gold medals at every freestyle distance from 200 metres to 1500 metres.  A three-time Olympic gold medalist and nine-time world champion, he is also the most decorated Chinese swimmer in history.  "NBC Sports" described Sun as "very arguably the greatest freestyle swimmer of all time." Adam Peaty, MBE (born 28 December 1994) is a British competitive swimmer who specializes in the breaststroke.  He has represented Great Britain at the Olympic Games, FINA World Championships, and European Championships, and England in the Commonwealth Games.  He won the gold medal in the 100m breaststroke at the 2016 Olympics, the first by a male British Swimmer in 24 years.  He is the current holder of the world record in 50 and 100m breaststroke. Bronte Campbell {'1': ", '2': ", '3': ", '4': "} (born 14 May 1994) is an Australian competitive swimmer who is an Olympic gold-winner, world champion, and world record-holder.  Her older sister, Cate, is also a competitive swimmer, who holds the current world record in both the short and long course 100 metre individual freestyle events.  Bronte and Cate were the first Australian siblings on the same Olympic swimming team since the 1972 Olympics and the first Australian sisters ever to compete in the same swimming event at the Olympics.  Bronte Campbell won three gold medals at the 2015 World Championships, including the 50 and 100 metre freestyle events. Farida Hisham Osman (born January 18, 1995) is an Egyptian competitive swimmer who specializes in butterfly and freestyle events.  An All-Africa Games gold medalist and Egyptian national champion and record-holder.  Osman is the fastest female swimmer in Egypt and Africa, she is currently coached by Teri McKeever.  Osman holds the senior national records for all the butterfly, freestyle and backstroke events, as well as African records in the 50m and 100m butterfly. Evgeny Sedov (Russian: Евгений Вадимович Седов ; born 29 January 1996) is a Russian competitive swimmer.  Sedov and his teammates won the gold medal in the 4×50 m freestyle relay at the 2014 short course world championships in Doha, breaking the world record.  Together with his teammates, he also broke the 4×50 meter medley relay world record in the heats, but this record was broken in the final by Brazil.  He is the current junior world record holder in the 50 meter butterfly (long course).
Answer: breaststroke