You will be given a definition of a task first, then some input of the task.
In this task, you're given a statement, 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'.

Context: Achterberg first signed for Tranmere Rovers in 1998, after a successful trial as a replacement for the Everton bound Steve Simonsen. Link Information: Steven Preben Arthur Simonsen (born 3 April 1979) Question: How old was Steve Simonsen when Achterberg arrived as his replacement?
Output:
Answer: 19