Given the following question, answer it by providing follow up questions and observation answers. For each follow up question, you are given a context which is the top returned google snippet for the question from Wikipedia. If no follow up questions are necessary, answer the question directly.

Use the following format:

Context: relevant context to the input question
Question: the input question you must answer
Thought: you should always think about what to do
Are follow up questions needed: respond 'Yes' or 'No' based on your previous Thought
Follow up: the question to be made?
Observation: the answer to the follow up question using the given context
... (this /Thought/Are follow up questions needed/Follow up/Observation/ can repeat N times)

Thought: I now know the final answer
Are follow up questions needed: No
Final Answer: the final answer to the original input question

Begin!

Context: Today is 29-april-2023
Context: The Dirección Federal de Seguridad (Federal Security Directorate, DFS) was a Mexican intelligence agency and secret police. ... It was created in 1947 under Mexican president
Question: Could a Mexican president be a CIA agent?
Are follow up questions needed?: Yes