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'.

Passage: A native of the Ukrainian port city of Odessa (a part of the Soviet Union until 1991), Izold Pustolnik graduated cum laude from Odessa University in 1960 and received his Ph.D. from the University of Tartu in 1969 and his D.Sc. from Saint Petersburg State University in 1994. From the age of 27 in 1965 until his death forty-three years later, he was on the staff of Tartu Observatory where, as a research associate (promoted to senior research associate in 2000), he worked on the physics of close binary systems, theory of stellar atmospheres, interstellar medium, archaeoastronomy and history of astronomy. He was also a member of the International Astronomical Union, European Astronomical Society, Euroscience, Society for European Astronomy in Culture (SEAC) and served on the Board of Euro-Asian Astronomical Society and the Advisory Board of Astronomical and Astrophysical Transactions.
Link Information: none Question: How many citizens lived in Odessa the year it ceased to be part of the Soviet Union?
Answer: none

Passage: During the process of electing Leopoldo Calvo-Sotelo as Spain's new president in February 1981, Civil Guards and army members broke into the Congress of Deputies and held all deputies at gunpoint. One of the reasons that led to the coup d'etat was the increase of ETA's violence. The coup failed after the King called for the military powers to obey the Constitution. Days after the coup, ETA's faction politiko-militarra started its disbanding, with most of its members joining Euskadiko Ezkerra, a leftist nationalist party away from the Abertzale left. General elections were held in 1982, and Felipe Gonzalez, from the Socialist Workers' Party became the new president, while Herri Batasuna won two seats. In the Basque Country, Carlos Garaikoetxea from the PNV became lehendakari in 1979. During those years, hundreds of members of Herri Batasuna were arrested, especially after some of them sang the Eusko Gudariak in front of Juan Carlos I.
Link Information: General elections were held in 1982, and Felipe Gonzalez, from the Socialist Workers' Party became the new president, Question: Who was younger when elected president, Calvo-Sotelo or Gonzalez?
Answer: Felipe Gonzalez

Passage: John Francis Barnett was the son of John Barnett's brother, Joseph Alfred, also a professor of music. John Francis carried on the traditions of the family as a composer and teacher. He obtained a queen's scholarship at the Royal Academy of Music, studied under William Sterndale Bennett and developed into an accomplished pianist, visiting Germany to study in 1857 and playing Mendelssohn's Piano Concerto No. 2 in D minor at a Gewandhaus concert at Leipzig in 1860. His teachers at the Conservatoire in Leipzig included the great pianist Ignaz Moscheles, who had been a pupil of Beethoven. Back in Britain, Barnett enjoyed a successful career as a pianist for some years but concentrated increasingly on composition and teaching. He became noticed as a composer with his symphony in A minor (1864), and followed this with a number of compositions for orchestra, strings and piano. His cantata The Ancient Mariner premiered at Birmingham in 1867, and another, Paradise and the Peri, in 1870, both successfully. In 1873 his most important work, the oratorio The Raising of Lazarus, was written, and in 1876 produced at Hereford. During this period, Barnett also composed several other minor cantatas and piano pieces, and he took an active part as a professor at the Guildhall School of Music and one of the founder-professors of the Royal College of Music, where his students included Marmaduke Barton.
Link Information:

The Royal College of Music is a conservatoire established by royal charter in 1882, located in South Kensington, London, UK. Question: In what city did Barnett teach Maramduke Barton?
Answer: London, UK