In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

[Q]: Passage: Foulkes was educated at Bedford Modern School, and was commissioned into the Royal Engineers as a second lieutenant on 27 February 1894, followed by promotion to lieutenant on 27 February 1897. He served in Sierra Leone 1898–99 (later known as the Hut Tax War), for which he received the East and West Africa Medal. After the outbreak of the Second Boer War in October 1899, he was appointed on the Staff of the army in South Africa, and took part in a number of engagements and operations. He became Assistant Commissioner for the Anglo-French Boundary Commission in the East of Niger in late 1902, with the local rank of captain. After taking part in the Kano-Sokoto expedition which brought the Emirs in Nigeria under British control in 1903, he became Commander of the Ordnance Survey of Scotland in 1904. He was a member of the bronze medal-winning team for the field hockey in the 1908 Summer Olympics. He went on to be Commander of 31st (Fortress) Company in Ceylon in 1909 and Commander of 'L' Company at the Royal Engineers Depot in Chatham in 1913.
 Link Information: The Second Boer War (11 October 1899 – 31 May 1902) was fought between the British Empire and two Boer states, the South African Republic (Republic of Transvaal) and the Orange Free State Question: What countries participated in the war that started in October 1899 that Foulkes served in?
[A]: Answer: British Empire


[Q]: Passage: Born the son of Colonel Arthur Hare Vincent and Elizabeth Rose Manson and educated at Wellington College and the Royal Military Academy, Woolwich, Vincent was commissioned into the Royal Artillery as a second lieutenant on 24 July 1891. He was promoted to lieutenant on 24 July 1894 and to captain on 13 February 1900. He served with the China Expeditionary Force in late 1900 and then in the Second Boer War in South Africa. Following the end of the war, Vincent left Point Natal for India on the SS Ionian in October 1902 with other officers and men of the J Battery Royal Horse Artillery, and after arrival in Bombay, was stationed in Meerut, Bengal Presidency. In 1903, Vincent was sent to Tokyo to learn Japanese: he served as British military attaché with the Japanese Army during the Russo-Japanese War and, from 1 March 1904, was attached to the 2nd Division of the First Japanese Army in Manchuria.
 Link Information: none Question: How many students did Wellington College have the year that Vincent was promoted to lieutenant?
[A]: Answer: none


[Q]: Passage: The Derg overthrew the Ethiopian Empire and Emperor Haile Selassie in a coup d'état on 12 September 1974, establishing Ethiopia as a Marxist-Leninist communist state with itself as a military junta and provisional government. Various left-wing, ethnic, and anti-communist opposition groups supported by the United States began armed resistance to the Soviet-backed Derg, in addition to the Eritrean separatists already fighting in the Eritrean War of Independence. The Derg used military campaigns and the Qey Shibir (Ethiopian Red Terror) to repress the rebels. By the mid-1980s, various issues such as the 1983–1985 famine, economic decline and other after-effects of Derg policies ravaged Ethiopia, increasing popular support for the rebels. The Derg dissolved itself in 1987, establishing the People's Democratic Republic of Ethiopia (PDRE) under the Workers' Party of Ethiopia (WEP) in an attempt to maintain its rule. The Soviet Union ended its support for the PDRE in the late-1980s and the government was overwhelmed by the increasingly victorious rebel groups. In May 1991, the PDRE was defeated in Eritrea and President Mengistu Haile Mariam fled the country. The Ethiopian Civil War ended on 4 June 1991 when the Ethiopian People's Revolutionary Democratic Front (EPRDF), a coalition of left-wing ethnic rebel groups, entered the capital Addis Ababa and overthrew the WEP. The PDRE was dissolved and replaced with the Tigray People's Liberation Front-led Transitional Government of Ethiopia.
 Link Information: Haile Selassie I (, ; born Lij Tafari Makonnen Woldemikael; 23 July 1892 – 27 August 1975) was Crown Prince and Regent of the Ethiopian Empire from 1916 to 1928, and then King and Regent from 1928 to 1930, and finally Emperor from 1930 to 1974. Question: How many years had the Emperor Haile Selassie been in power when the Derg overthrew his rule in 1974?
[A]:
Answer: 58