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'.
--------
Question: Passage: Tomić belonged to the first class of six Serbian pilots trained in France in 1912. In August 1914, he participated in the first aerial dogfight of the war, when he exchanged gunfire with an Austro-Hungarian plane over western Serbia. In the winter of 1915, during the Serbian Army's retreat across Albania to the Greek island of Corfu, he evacuated General Petar Bojović from Scutari by plane, delivered mail by air and transported the Serbian Government's gold and hard currency reserves from Niš to keep them from falling into enemy hands. Following the occupation of Serbia by the Central Powers, Tomić went to France and flew over the Western Front, where he had one confirmed kill. He returned to the Balkans in late 1916, conducted combat missions over Bulgarian-occupied Macedonia and shot down one enemy plane. Tomić continued flying after the war and became head of the Royal Yugoslav Air Force's pursuit squadron in Novi Sad. During World War II, he was captured by the Germans and detained as a prisoner of war. Tomić left Yugoslavia following the war and settled in the United States with his wife. He died in Chicago in 1962.
 Link Information: The Central Powers consisted of the German Empire and the Austro-Hungarian Empire at the beginning of the war. The Ottoman Empire joined the Central Powers later in 1914. In 1915, the Kingdom of Bulgaria joined the alliance. Question: How many nations were part of the powers that occupied Serbia?

Answer: Answer: 4


Question: Passage: The song has been covered several times. Jay and the Americans released a version on their 1969 album Sands of Time. "So Much in Love" was performed by Talking Heads in their early live sets at CBGB club in 1975, and was sung by Eagles member Timothy B. Schmit on the soundtrack to Fast Times at Ridgemont High (1982) and reached #59 on the Hot 100 as a single. A 1988 rendition by Art Garfunkel got to #11 on the Adult Contemporary chart. R&B vocal group All-4-One released "So Much in Love" in late 1993 as their debut single. It peaked at #5 on the Hot 100 in early 1994 and was certified Gold by the RIAA, selling 600,000 copies.
 Link Information: CBGB was a New York City music club opened in 1973 Question: Where was the club that the Talking Heads performed the song live at located?

Answer: Answer:  New York City


Question: Passage: After the election of 1977 Ginjaar was appointed as Minister of Health and Environment in the Cabinet Van Agt-Wiegel, taking office on 19 December 1977. Ginjaar served as acting Minister for Science Policy from 1 April 1979 until 3 May 1979 following the death of Rinus Peijnenburg. In December 1980 Ginjaar announced that he wouldn't stand for the election of 1981 but wanted to run for the Senate. Ginjaar was elected as a Member of the Senate after the Senate election of 1981, taking office on 25 August 1981 serving as a frontbencher chairing the and the and spokesperson for the Environment, Higher Education and Agriculture. The Cabinet Van Agt–Wiegel was replaced by the Cabinet Van Agt II following the cabinet formation of 1981 on 11 September 1981. Ginjaar also served as Chairmen of the People's Party for Freedom and Democracy from 29 November 1986 until 4 October 1991. Ginjaar served as a distinguished professor of Medical ethics at the Utrecht University from 1 September 1982 until 1 January 1986 and also served as Chairman of the Education board of the Utrecht University from 10 September 1982 until 1 January 1986 and a distinguished professor of Climatology and Medical research at the State University of Limburg from 1 March 1990 until 1 September 1994. Ginjaar was selected as Parliamentary leader of the People's Party for Freedom and Democracy in the Senate following the election of Frits Korthals Altes as President of the Senate, serving from 11 March 1997 until 14 September 1999. In November 2002 Ginjaar announced his retirement from national politics and that he wouldn't stand for the Senate election of 2003 and continued to serve until the end of the parliamentary term on 10 June 2003.
 Link Information: none Question: How long did the man that Ginjaar replaced as Minister for Science Policy serve in that position?

Answer:
Answer: none