Question: What event are Kjellfred Weum and 110 metres hurdles both names synonymous with?

full_context: Document 1: Sprint hurdles at the Olympics: The sprint hurdles at the Summer Olympics have been contested over a variety of distances at the multi-sport event. The men's 110 metres hurdles has been present on the Olympic athletics programme since the first edition in 1896. A men's 200 metres hurdles was also briefly held, from 1900 to 1904. The first women's sprint hurdling event was added to the programme at the 1932 Olympics in the form of the 80 metres hurdles. At the 1972 Games the women's distance was extended to the 100 metres hurdles, which is the current international standard.
Document 2: 100 metres hurdles: 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.
Document 3: Obstacle racing: Obstacle course racing (OCR) is a sport in which a competitor, traveling on foot, must overcome various physical challenges that are in the form of obstacles. Mud and trail runs are combined and the races are designed to result in mental and physical collapse. Obstacles include, but are not limited to, climbing over walls, carrying heavy objects, traversing bodies of water, crawling under barbed wire, and jumping through fire. Many obstacles are similar to those used in military training, while others are unique to obstacle racing and are employed throughout the course to test endurance, strength, speed and, dexterity. Races vary in both distance and challenge level, combining trail running, road running, and cross country running. With race venues typically in large cities, organizers encourage athletes of all types to participate. All Obstacles were introduced into Cross Country Running at Tough Guy, recorded on video 1989 - 2007. Most signature obstacles were actually created by Mr Mouse. According to the "Los Angeles Times" in 2012, the number of events—typically all-day festivals—rose rapidly. In accordance with the sub-culture's fast rate of growth, the "Obstacle Race Magazine" was launched.
Document 4: Fredrik Heffermehl: Fredrik Stang Heffermehl (born 11 November 1938) is a Norwegian jurist, writer and peace activist. He formerly worked as a lawyer and civil servant from 1965 to 1982 and was the first secretary-general of the Norwegian Humanist Association from 1980 to 1982. He later made his mark as a writer and activist for peace and against nuclear arms. He is the honorary president, and former president, of the Norwegian Peace Council, a former vice president of the International Peace Bureau, which received the 1910 Nobel Peace Prize, and a former vice president of the International Association of Lawyers against Nuclear Arms.
Document 5: 3000 metres steeplechase: The 3000 metres steeplechase or 3000-meter steeplechase is the most common distance for the steeplechase in track and field. It is an obstacle race over the distance of the 3000 metres, which derives its name from the horse racing steeplechase.
Document 6: 4 × 100 metres relay: The 4 × 100 metres relay or sprint relay is an athletics track event run in lanes over one lap of the track with four runners completing 100 metres each. The first runners must begin in the same stagger as for the individual 400 m race. A relay baton is carried by each runner and must be passed within a 20 m changeover box (usually marked by yellow lines) which extends 10 m on either side of each 100 m mark of the race. Another line is marked 10 m farther back, marking the earliest point at which the outgoing runner may begin (giving up to 10 m of acceleration before entering the passing zone).
Document 7: Abera Kuma: Abera Kuma Lema (born 31 August 1990) is an Ethiopian long distance runner, who competes in track, cross country and road running events. An African junior champion over 5000 m, he won his first senior international medal (a team bronze) at the 2010 IAAF World Cross Country Championships.
Document 8: 400 metres: The 400 metres, or 400 metre dash, is a common sprinting event in track and field competitions. It has been featured in the athletics programme at the Summer Olympics since 1896 for men and since 1964 for women. On a standard outdoor running track, it is one lap around the track. Runners start in staggered positions and race in separate lanes for the entire course. In many countries, athletes previously competed in the 440 yard dash (402.336 m)—which is a quarter of a mile and was referred to as the 'quarter-mile'—instead of the 400 m (437.445 yards), though this distance is now obsolete. An athlete who competes in the 400 m may still be referred to as 'quarter-miler'; the distance or event might still be called the "quarter."
Document 9: Kriss Akabusi: Kriss Akabusi MBE (born Kezie Uchechukwu Duru Akabusi, 28 November 1958) is a retired British sprint and hurdling track and field athlete.
Document 10: Kjellfred Weum: Kjellfred Weum (30 July 1940, Hafslo – 7 August 2017) was a Norwegian hurdler.
Document 11: 110 metres hurdles: 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.
Document 12: Colin Jackson: Colin Ray Jackson, CBE (born 18 February 1967) is a Welsh former sprint and hurdling athlete who specialised in the 110 metres hurdles. During a career in which he represented Great Britain and Wales, he won an Olympic silver medal, became world champion twice, World indoor champion once, went undefeated at the European Championships for 12 years and was a two-time Commonwealth champion. His world record of 12.91 seconds for the 110m hurdles stood for over a decade and he remains the 60 metres hurdles world record holder.
Document 13: Aron Koech: Aron Kipchumba Koech (also known as Haron Koech; born 27 January 1990) is a Kenyan hurdler. At the 2015 Athletics Kenya World Championship Trials he finished third in the 400 metres hurdles event. Later that year he represented Kenya in the 400 metres hurdles event at the 2015 World Championships in Athletics in Beijing, China. With a personal best, in a time of 49.38, he finished 22nd in the heats. He was qualified for the semi finals where he finished 19th in a time of 49.54. Again in 2016 he finished third at the 2016 Athletics Kenya Olympic Trials behind his brother and Boniface Mucheru Tumuti. At the Olympics, Koech made the final while his brother was disqualified in the heats. Tumuti went on to capture the silver medal in National Record time, while Koech finished seventh. His 48.49 in the semi final round is her personal record.
Document 14: Vlastimil Hoferek: Vlastimil Hoferek (born 6 November 1946 in Ostrava) is a Czech former sprint and hurdling athlete who specialised in the 110 metres hurdles and 60 metres hurdles.
Document 15: Omar McLeod: Omar McLeod (born 25 April 1994) is a Jamaican hurdler. He is the current 110m hurdle Olympic and World champion. He was NCAA indoor champion in the 60 metres hurdles in 2014 and 2015 and outdoor champion in the 110 metres hurdles in 2015; he turned professional after the 2015 collegiate season, forgoing his two remaining years of collegiate eligibility. His personal best in the 110 metres hurdles (12.90 seconds) ranks him 5th on the world all-time list.
ground_truth: hurdling track and field event