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'.

Input: Consider Input: Passage: Walsh first developed what would become the West Coast offense when he was offensive coordinator of the Cincinnati Bengals, working under legendary head coach Paul Brown. However, Walsh truly perfected this strategy as the head coach of the San Francisco 49ers. His teams were led by quarterback Joe Montana. Montana, who was noted for his ability to remain calm under pressure, also possessed good mobility and an accurate passing arm. Another important player in the 49ers offense was Roger Craig, a swift, speedy running back who could also catch passes out of the backfield and was a good receiver. Walsh's 49ers teams also featured several All-Pro wide receivers, including Dwight Clark, John Taylor, and Jerry Rice. The 49ers were one of the NFL's powerhouses in the 1980s and 1990s, under the guidance of head coaches Bill Walsh (1979–1988) and George Seifert (1989–1996). Walsh won three Super Bowls in the 1981, 1984 and 1988 seasons. Seifert won two Super Bowls in 1989 and 1994. Montana, Walsh and Rice are in the Pro Football Hall of Fame, and so is Montana's successor, quarterback Steve Young. Like Montana, Young was a great running quarterback and a very efficient passer. 
 Link Information: In the spring of 1993, at Montana's request, San Francisco traded Montana to the Kansas City Chiefs. Young was now the 49ers' undisputed starter, Question: What year did Montana's successor take over?

Output: Answer: 1993


Input: Consider Input: Passage: Lange was born in Warsaw into the patriotic Jewish family of Henryk Lange (1815–1884) and Zofia née Eisenbaum (1832–1897). His father took part in the November Uprising against the Russian Partition of Poland. He was an admirerer of Romantic literature and its ideals. Antoni Lange enrolled at Warsaw University but around 1880 he was expelled for his patriotic activity by the Tsarist namiestnik Apuchtin who ruled the university at that time. He supported himself financially as a tutor but also published poetry under the pen-names Napierski and Antoni Wrzesień. He decided to study in Paris where he encountered new trends in literature, philosophy and art. In France he became familiar with the theories of Jean Martin Charcot, as well as Spiritualism, parapsychology, the philosophy of Arthur Schopenhauer and Friedrich Nietzsche, oriental religions, European and Eastern literature and modern literary criticism. He took part in the literary meetings of Stéphane Mallarmé.
 Link Information: none Question: Who are some authors most associated with the type of books Lange enjoyed?

Output: Answer: none


Input: Consider Input: Passage: Pointon was born in Evesham, Worcestershire. He began his football career as an amateur with Coventry City and Redditch Town before joining Birmingham, still as an amateur, in August 1913. The club were fined £5 for playing him in the reserves before the transfer formalities had been completed. An outside left, his performances in the reserves were such that he was invited to a trial for England's amateur team, which proved unsuccessful. He made his debut in the Second Division on New Year's Day 1914 in a 2–0 defeat at Stockport County, and played three times more that season, scoring once, but left in April 1914. He played briefly for Redditch, then joined Walsall shortly before the First World War started. After the war he had a season with Nuneaton Town before returning to the Football League with Coventry City. He played twice in the Second Division for Coventry before a third spell with Redditch and finishing his career at Tamworth Castle.
 Link Information: Pointon was born in Evesham, Worcestershire. Question: What river runs through the town where Pointon was born?


Output: Answer: River Avon