instruction:
In this task, you're given a context, further information available on a particular linked term from the statement, and an answer term. Your job is to generate a question that can use the information provided to obtain the given answer. You should use the information on both context and link information to create the question. Note that the answer to the question should be exactly the given answer, and if the answer is none, the answer to the question shouldn't be obtainable from the context or linked information.
question:
Context: Harris hosted Abraham Lincoln at his North End home when Lincoln spoke at the Harris Institute in 1860 Link Information: Abraham Lincoln (/ˈliŋkən/; February 12, 1809 – April 15, 1865) Answer: 51
answer:
How old was Abraham Lincoln the year that Harris hosted him at his North End home?


question:
Context: In 1940, he was promoted to commander of the Q-ship which was sunk by a torpedo in the Atlantic, 200 miles west of Ireland; Link Information: When the Second World War started Answer: 1
answer:
How long had the Second World War been going on when Ryder was promoted to commander of the Q-ship that was sunk?


question:
Context: The Secret Service (1969), Link Information: Gerry Anderson (born Gerald Alexander Abrahams; 14 April 1929  Answer: 40
answer:

At what age did Gerry Anderson produce The Secret Service?