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: Civil War Unknowns Monument Link Information: The Civil War Unknowns Monument, which was located south-southwest of Arlington House, was covered by a canopy. Question: In what year was the Civil War Unknowns Monument built?
Answer: 1865 

Context: The episode's writer, David X. Cohen, developed the idea after visiting the Link Information: The original Victorian Gothic building, which was opened in 1877, was designed by Calvert Vaux and J. Wrey Mould, both already closely identified with the architecture of Central Park. Question: When did the place that inspired David Cohen to write "Lisa the Skeptic" first open?
Answer: 1877

Context: He was later advanced to the title of Earl of Wemyss and the patent was presented to him at Dunfermline personally by Charles I of England Link Information: Charles I (19 November 1600 – 30 January 1649) was King of England, King of Scotland, and King of Ireland from 27 March 1625 until his execution in 1649 Question: How many years did the king rule that made Wemyss an Earl?

Answer: 24