Teacher: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'.
Teacher: Now, understand the problem? Solve this instance: Context: At the beginning of World War II, Kershaw served with the Thames River police, then was commissioned second lieutenant in the 16th/5th Lancers on 15 June 1940 Link Information: The start of the war in Europe is generally held to be 1 September 1939, Question: How many months after the beginning of World War II was Kershaw commissioned as a second lieutenant?
Student:
Answer: 9