Given the question: Information: - Queensland (abbreviated as QLD) is the second-largest and third-most-populous state in the Commonwealth of Australia. Situated in the north-east of the country, it is bordered by the Northern Territory, South Australia and New South Wales to the west, south-west and south respectively. To the east, Queensland is bordered by the Coral Sea and Pacific Ocean. Queensland has a population of 4,750,500, concentrated along the coast and particularly in the state's South East. The state is the world's sixth largest sub-national entity, with an area of 1,852,642km. The capital and largest city in the state is Brisbane, Australia's third largest city. Often referred to as the "Sunshine State", Queensland is home to 10 of Australia's 30 largest cities and is the nation's third largest economy. Tourism in the state, fuelled largely by its warm tropical climate, is a major industry. - BHP Billiton is an Anglo-Australian multinational mining, metals and petroleum company headquartered in Melbourne, Australia. It is the world's largest mining company measured by 2015 market values and Australia's fourth largest company (by revenue), formerly the largest. - Queensland Rail, also known as QR, is a railway operator in Queensland, Australia. Owned by the Queensland Government, Queensland Rail operates suburban and long-distance passenger services. It also owns and maintains approximately 8,000 kilometres of track in Queensland. - Barrick Gold Corporation is the largest gold mining company in the world, with its headquarters in Toronto, Ontario, Canada. Barrick is currently undertaking mining projects in Argentina, Australia, Canada, Chile, the Dominican Republic, Papua New Guinea, Peru, Saudi Arabia, the United States and Zambia. For 2013, it produced 7.2 million ounces of gold at all-in sustaining costs of US $915/ounce and 539 million pounds of copper at C1 cash costs of $1.92/pound. As of December 31, 2013, its proven and probable mineral reserves were 104.1 million ounces of gold, 888 million ounces of silver contained within gold reserves, and 14.0 billion pounds of copper. - Melbourne is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in Australia. The name "Melbourne" refers to an urban agglomeration spanning which comprises the broader metropolitan area, as well as being the common name for its city centre. The metropolis is located on the large natural bay of Port Phillip and expands into the hinterlands towards the Dandenong and Macedon mountain ranges, Mornington Peninsula and Yarra Valley. Melbourne consists of 31 municipalities. It has a population of 4,529,500 , and its inhabitants are called Melburnians. - Ghana, officially the Republic of Ghana is a unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic Ocean, in the subregion of West Africa. Spanning a land mass of 238,535km, Ghana is bordered by the Ivory Coast in the west, Burkina Faso in the north, Togo in the east and the Gulf of Guinea and Atlantic Ocean in the south. "Ghana" means "Warrior King" in the Soninke language. - Tin is a chemical element with the symbolSn (for ) and atomic number50, is a post-transition metal in group 14 of the periodic table. It is obtained chiefly from the mineral cassiterite, which contains tin dioxide, SnO. Tin shows a chemical similarity to both of its neighbors in group 14, germanium and lead, and has two main oxidation states, +2 and the slightly more stable +4. Tin is the 49th most abundant element and has, with 10 stable isotopes, the largest number of stable isotopes in the periodic table, thanks to its magic number of protons. It has two main allotropes: at room temperature, the stable allotrope is -tin, a silvery-white, malleable metal, but at low temperatures it transforms into the less dense grey -tin, which has the diamond cubic structure. Metallic tin is not easily oxidized in air. - William Boyce Thompson, (May 13, 1869 June 27, 1930), was an American mining engineer, financier, prominent in the Republican party, philanthropist, and founder of Newmont Mining. Thompson was one of the significant early twentieth century mine operators that discovered and exploited vast copper deposits that revolutionized Western American mining, and reaped for themselves tremendous fortunes. - Indonesia (or ; Indonesian: ), officially the Republic of Indonesia, is a unitary sovereign state and transcontinental country located mainly in Southeast Asia with some territories in Oceania. Situated between the Indian and Pacific oceans, it is the world's largest island country, with more than seventeen thousand islands. At , Indonesia is the world's 14th-largest country in terms of land area and world's 7th-largest country in terms of combined sea and land area. It has an estimated population of over 260 million people and is the world's fourth most populous country, the most populous Austronesian nation, as well as the most populous Muslim-majority country. The world's most populous island of Java contains more than half of the country's population. - Nevada (Spanish for "snowy"; see pronunciations) is a state in the Western, Mountain West, and Southwestern regions of the United States of America. Nevada is the 7th most extensive, the 34th most populous, and the 9th least densely populated of the 50 United States. Nearly three-quarters of Nevada's people live in Clark County, which contains the Las VegasParadise metropolitan area where three of the state's four largest incorporated cities are located. Nevada's capital is Carson City. Nevada is officially known as the "Silver State" because of the importance of silver to its history and economy. It is also known as the "Battle Born State", because it achieved statehood during the Civil War (the words "Battle Born" also appear on the state flag); as the "Sage-brush State", for the native plant of the same name; and as the "Sage-hen State". Nevada borders Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast and Utah to the east. - Newmont Mining Corporation, based in Greenwood Village, Colorado, USA, is a mining company, founded in 1916 by William Boyce Thompson as a diversified holding company, with active gold mines in Nevada, Indonesia, Australia, New Zealand, Ghana and Peru. Holdings include Santa Fe Gold, Battle Mountain Gold, Normandy Mining, Franco-Nevada Corp and Fronteer Gold. Newmont also has many joint venture relationships. As of the third quarter of 2014, Newmont was the world's second-largest producer of gold, behind Barrick Gold. - John Barry Prescott AC ( born 22 October 1940 ) is an Australian corporate bureaucrat , currently chairman of Queensland Rail and ASC Pty Ltd , and executive chairman of Newmont Mining Corporation . He was the managing director and CEO of BHP Billiton from 1991 to 1998 . Prescott received a Bachelor of Commerce ( Industrial Relations ) from the University of New South Wales in 1961 . He was appointed a Companion of the Order of Australia in 1996 and received the Centenary Medal in 2003 . Prescott 's time as CEO of BHP coincided with the lost years when the company meandered from one crisis to the next . Failed investments such as Magma Copper , Venezuelan hot briquette plant , Pilbara hot briquette plant and the Beenup mineral sands project lost $ 10 billion . What is the relationship between 'john b. prescott' and 'engineer'?
The answer is:
occupation