Information:  - Dingaan Bongane Thobela (born 24 September 1966 in Soweto, South Africa), is a professional boxer in the Super Middleweight (168lb) division.  - Arturo Gatti (April 15, 1972  July 11, 2009) was an Italian Canadian professional boxer who competed from 1991 to 2007. Nicknamed "Thunder", Gatti was known for his heart and bravery in the ring, and also carried exceptional punching power.  - A boxing ring is the space in which a boxing match occurs. A modern ring, which is set on a raised platform, is square with a post at each corner to which four parallel rows of ropes are attached with a turnbuckle. Unlike its cousin the wrestling ring, the ropes in a boxing ring are generally connected together between the posts.  - A combat sport, or fighting sport, is a competitive contact sport with one-on-one combat. Determining the winner depends on the particular contest's rules. In many fighting sports, a contestant wins by scoring more points than the opponent or by disabling the opponent. Boxing, wrestling, Muay Thai, Tae Kwon Do, Judo, Brazilian Jiu-jitsu, Sambo, and Mixed Martial Arts are examples of combat sports.  - Boxing is a combat sport in which two people wearing protective gloves throw punches at each other for a predetermined set of time in a boxing ring.  - Dave `` Davey '' Hilton , Jr. ( born December 9 , 1963 ) is a former boxing world champion . He is a member of the Fighting Hilton Family and is the former brother - in - law of Arturo Gatti . He held the WBC super middleweight title briefly after defeating Dingaan Thobela in December 2000 , but shortly thereafter , the WBC stripped it from him after child molestation charges were leveled against him . Hilton suffered only two losses in his career , to fellow Canadians Stephane Ouellett , and Alain Bonnamie . He later avenaged the loss to Bonnamie , and has previously knocked out Ouellett twice . Hilton was found guilty in 2001 of sexually abusing his daughters , Jeannie , born in 1981 , and Anne Marie , born in 1983 , between 1995 and 1998 , and was sentenced to seven years in jail in a facility 110 kilometers northwest of Montreal . In May 2006 , Hilton was granted parole and was freed on June 20 . He made his return to the boxing ring in May 2007 and won a unanimous decision . Hilton 's daughters have written a book , Le Coeur au beurre noir ( The Heart with a Black Eye ) , describing their abuse in detail . In September 2004 , a Quebec judge lifted a publication ban on the identities of the daughters so they could publish the book . An English translation is in progress . On August 20 , 2007 , Hilton was arrested by police and returned to jail for breaching conditions of his release . It was reported that Hilton assaulted his wife and made threats . He was acquitted on the charges of assault and death threats but remained detained pending the decision of Commission nationale des libérations conditionnelles due to his conditional release violations . Dave Hilton was again arrested on September 28 , 2010 , and charged with threats and assault , along with his brother , Jimmy Hilton . Hilton remarried in September 2012 , and had another daughter in March 2013 .    What entity does 'dave hilton' has the relation 'occupation' with?
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Answer: boxer


Information:  - Mullard Radio Astronomy Observatory (MRAO) is home to a number of large aperture synthesis radio telescopes, including the One-Mile Telescope, 5-km Ryle Telescope, and the Arcminute Microkelvin Imager.   - The Fourth Cambridge Survey ( 4C ) is an astronomical catalogue of celestial radio sources as measured at 178 MHz using the 4C Array . It was published in two parts , in 1965 ( for declinations +20 to +40 ) and 1967 ( declinations -7 to + 20 and +40 to +80 ) , by the Radio Astronomy Group of the University of Cambridge . References to entries in this catalogue use the prefix 4C followed by the declination in degrees , followed by a period , and then followed by the source number on that declination strip , e.g. 4C - 06.23 . The 4C Array , which used the technique of aperture synthesis , could reliably position sources with flux densities of around 2 Jy , to within about 0.35 arcmin in Right ascension and 2.5 arcmin in declination .  - The Equator usually refers to an imaginary line on the Earth's surface equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. The Equator is about long; some 78.7% lies across water and 21.3% over land.  - The 4C Array is a cylindrical paraboloid radio telescope at the Mullard Radio Astronomy Observatory, near Cambridge, England. It is similar in design to the Molonglo Observatory Synthesis Telescope. It is 450 m long, 20 m wide, with a second, moveable element (now mostly removed; some of it is still visible, beyond COAST). The first large aperture synthesis telescope (1958), it was also the first new instrument to be built at Lord's Bridge, after the Observatory was moved there in 1957, and needed of reflector wire (since removed). The 4C operated at 178 MHz (1.7 m), and located nearly 5000 sources of the 4C (4th Cambridge) catalogue published in 1965 and 1966, which helped establish the evolution of the radio galaxy population of the universe. The telescope is now inoperable.  - In astronomy and celestial navigation, the hour angle is one of the coordinates used in the equatorial coordinate system to give the direction of a point on the celestial sphere. The hour angle of a point is the angle between two planes: one containing the Earth's axis and the zenith (the meridian plane), and the other containing the Earth's axis and the given point (the hour circle passing through the point).  - In astronomy, declination (abbreviated dec; symbol ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. Declination's angle is measured north or south of the celestial equator, along the hour circle passing through the point in question.  - In astronomy, the hour circle of a celestial object is the great circle through the object and the celestial poles. It is perpendicular to the celestial equator. The declination of an object as observed on the celestial sphere is the angle measured along the hour circle of that object to the celestial equator. In other words, it is analogous to meridians or longitudes on a globe. A meridian on the celestial sphere matches an hour circle at any time. So called because the angle between the planes of the hour circles (or the difference in longitudes) of two objects is sometimes measured in hours (or hours, minutes, and seconds), one revolution (360°) being equivalent to 24 hours, or 1 hour being equivalent to 15°.    What entity does 'fourth cambridge survey' has the relation 'operator' with?
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Answer: