Context: The current Chief of the Defence Staff, the professional head of the British Armed Forces, is General Sir Nicholas Houghton, late Green Howards. He is supported by the Vice Chief of the Defence Staff, by the professional heads of the three services of HM Armed Forces and by the Commander of Joint Forces Command.

Question: What is the name of the person who is the current Chief of the Defence Staff?
Answer: General Sir Nicholas Houghton

Question: Who is the professional head of the British Armed Forces?
Answer: Chief of the Defence Staff

Question: The professional heads of what three services support the Chief of the Defence Staff?
Answer: HM Armed Forces

Question: Which person in the Joint Forces Command supports the Chief of the Defence Staff?
Answer: the Commander

Question: Who is the current Commander of Joint Forces Command?
Answer: Unanswerable

Question: What is the title of the head of the HM Armed Forces?
Answer: Unanswerable

Question: The heads of what three services support the Commander of Joint Forces Command?
Answer: Unanswerable

Question: What is the name of the person who used to be the Commander of Joint Forces Command?
Answer: Unanswerable

Question: Who is the professional head of the British Defense Staff?
Answer: Unanswerable