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'.

Q: Context: Hackleman and the 16th Indiana were sent to the Eastern Theater where they were engaged at the Battle of Ball's Bluff. Link Information: The Battle of Ball's Bluff in Loudoun County, Virginia on October 21, 1861, Question: What city was the battle in that the 16th Indiana Volunteer Infantry fought in the Eastern Theater?

A: Answer: Loudoun County
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Q: Context: Pond and Pond Link Information: none Question: When was the firm that designed the Oregon library established?

A: Answer: none
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Q: Context: The Achaemenid Empire (550–330 BC), founded by Cyrus the Great, Link Information: The reign of Cyrus the Great lasted c. 30 years Question: What years did Cyrus the Great rule the Achaemenid Empire?

A:
Answer: 30
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