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'.
Q: Passage: Thomson, a wing half, started his career with Thornton Rangers in his native Fife, before moving to Dundee, where he played for four years. In 1929 he moved to Everton. His Everton career had an inauspicious start, with the club suffering relegation in his first season. The following season, he gained a Second Division winners medal as Everton made an immediate return to the top flight, and then added a First Division medal in 1932 as Everton became champions. Later that year he made his international debut, representing Scotland in a 52 home international defeat against Wales, though this was to be his only international appearance. He played in the 1933 FA Cup Final, helping Everton to a 30 win against Manchester City. Later in his time at Everton first team appearances became more uncommon for Thomson as he was displaced from the team by Joe Mercer. Thomson retired from playing in 1938, having made 299 appearances for Everton, in which he scored five goals.
Link Information: a match against Liverpool on 10 April 1954, and finally called time on his footballing career the year after. Question: How long after Thomson retired from playing did the player that replaced him on the Everton team also stop playing?
A:
Answer: 17