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'.

[EX Q]: Context: The foreword of the book was written by Grafton Elliot Smith. Link Information: none Question: How long did Grafton Elliot Smith know Donald Alexander Mackenzie at the time he wrote the foreword of Ancient Man in Britain?
[EX A]: Answer: none

[EX Q]: Context: He missed 2012 after undergoing Tommy John surgery; this also caused him to miss most of 2013, which he spent with the Chicago Cubs. Link Information: The procedure was invented in 1974 Question: How many years after the first recorded Tommy John surgery did Scott Baker undergo his?
[EX A]: Answer: 38

[EX Q]: Context: First he moved to Dresden Link Information: none Question: In what year did Mikhail Sumarokov-Elston move to Dresden?
[EX A]:
Answer: none