Definition: 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'.
Input: Context: Souther met and befriended other foreign Soviet intelligence agents that had defected including Kim Philby and George Blake Link Information:  In 1940, he began working for MI6 Question: Did Blake or Philby defect first?
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Answer: Kim Philby

Harold Adrian Russell "Kim" Philby