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: During the Battle of Gettysburg, the dirt Wheatfield Road was used by various Union and Confederate troops (e.g., Crawford's Third Division of Pennsylvania Reserves), and Union troops deployed artillery westward to the Peach Orchard using the road. Link Information: The Battle of Gettysburg () was fought July 13, 1863 Question: How long did the battle in which Union troops deployed artillery westward to the Peach Orchard using Wheatfield Road last?
Output:
Answer: 3