Question: What is the age difference between the man De Boer replaced in February of 1972 and the man who replaced De Boer during his medical leave of absense? Passage 1:A tunnel diode or Esaki diode is a type of semiconductor diode that has negative resistance due to the quantum mechanical effect called tunneling. It was invented in August 1957 by Leo Esaki, Yuriko Kurose, and Takashi Suzuki when they were working at Tokyo Tsushin Kogyo, now known as Sony. In 1973, Esaki received the Nobel Prize in Physics, jointly with Brian Josephson, for discovering the electron tunneling effect used in these diodes. Robert Noyce independently devised the idea of a tunnel diode while working for William Shockley, but was discouraged from pursuing it. Tunnel diodes were first manufactured by Sony in 1957, followed by General Electric and other companies from about 1960, and are still made in low volume today.
 Passage 2:The game was first announced in July 2015, as a collaboration between Spike Chunsoft and tri-Ace in a fourteen-page article in Weekly Famitsu. The game will be developed by much of the same tri-Ace staff that had worked on the first Valkyrie Profile game, with assistance from Spike Chunsoft staff as well. Other key staff for the game include character designer Mino Taro of Konamis Love Plus series, and music composer Motoi Sakuraba, composer for tri-Ace's Valkyrie Profile and Star Ocean series. A trailer for the game was shown at the Tokyo Game Show in September 2015. Trailers for each of the game's characters were released over time through Famitsus YouTube channel. The game was first announced to be released on November 26, 2015, before being delayed to its final release date, December 17, 2015. Shortly after the game's Japanese release, Spike Chunsoft announced that there would be downloadable content collaborations some of tri-Ace's other games, including Valkyrie Profile and Star Ocean 5 games. The collaborations, released in March 2016, consisted of character costumes based on character's from the two aforementioned titles, along with a costume to dress up as Monokuma, the primary antagonist from Spike Chunsoft's Danganronpa series of video games.
 Passage 3:De Boer became a Member of the House of Representatives after resignation of Joop Bakker, taking office on 16 February 1972 serving as a frontbencher chairing the and the and spokesperson for Small business, Civil Service, Fisheries, Culture, Media and Military Personnel. De Boer also Chairman of the Anti-Revolutionary Party from 13 December 1975 until 27 September 1980. After the election of 1977 the Christian Democratic Appeal and the People's Party for Freedom and Democracy (VVD) formed the Cabinet Van Agt-Wiegel, De Boer and several Christian Democratic Appeal Members of the House of Representatives were critical on the coalition agreement and formed a informal caucus in there own parliamentary group called the  that supported the cabinet only with confidence and supply. After the election of 1981 De Boer was appointed as State Secretary for Culture, Recreation and Social Work the Cabinet Van Agt II, taking office on 11 September 1981. The Cabinet Van Agt II fell just seven months into its term on 12 May 1982 after months of tensions in the coalition and continued to serve in a demissionary until the first cabinet formation of 1982 when it was replaced by the caretaker Cabinet Van Agt III with De Boer appointed as Minister of Culture, Recreation and Social Work, taking office on 29 May 1982. After the election of 1982 De Boer returned as a Member of the House of Representatives, taking office on 16 September 1982. De Boer took a medical leave of absence on 11 October 1982 after which Minister of Health and Environment Til Gardeniers-Berendsen served as acting Minister of Culture, Recreation and Social Work. Following the second cabinet formation of 1982 De Boer was not giving a cabinet post in the new cabinet, the Cabinet Van Agt III was replaced by the Cabinet Lubbers I on 4 November 1982 and he continued to serve in the House of Representatives as a frontbencher and spokesperson for Welfare, Sport, Social Work and Culture.

Output: 3