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: 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 (19791988) and George Seifert (19891996). 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?
Answer: 1993

Passage: Duan Ju was born in Tianjin. At the age of 17, he was called up to China youth football team. Duan Ju played for Tianjin football Team 2 from 1980 to 1983. From 1984 to 1991, Duan Ju played for Tianjin. In 1988, Duan Ju played for China in the 1988 Asian Cup and football match at the 1988 Olympic Games. In 1990, China lost to Thailand in football match at the 1990 Asian Games. The coach of China, Gao Fengwen quit office, then Duan Ju quit the China national team and returned to Tianjin. in 1992, Duan Ju had gone to Japan and played for NKK SC. In 1993, Duan Ju retired in Japan and returned to China. In 1995, Duan Ju played for Tianjin Yuancheng football club, in the same year, Duan Ju retired again.
Link Information: none Question: What coach did Duan Ju play for on the Japanese team?
Answer: none

Passage: Rayner was born in Etwall in Derbyshire, the son of Howard T Rayner and Irene (nee Docking). He was raised in Derby, where he was a choirboy at St Luke's Church and later St Werburgh's Church. As a young man, he apprenticed with Rolls-Royce before joining his family's motor car company, where he eventually became sales manager. At this time, he performed in amateur productions in Corby and elsewhere, including Derby Opera Company and Opera da Camera. In 1955 he married Sylvia Groome, and the couple had four children. In 1967, at age 34, Rayner decided to focus on singing and was accepted into the Birmingham School of Music. In 1969, Rayner joined the Wales National Choir and Welsh National Opera's "Opera for All", to tour for two seasons in such roles as Figaro in The Barber of Seville, Sharpless in Madam Butterfly, Frank in Die Fledermaus and the title role in Eugene Onegin.
Link Information: The population at the 2011 Census was 2,906. Question: Which town was more populated, the town Michael Rayner was born in, or the town he was raised in?
Answer: Derby