With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dracula is a book.
text_B: Air Chief Marshal Sir Andrew Douglas Pulford , -LRB- born 22 March 1958 -RRB- is a retired senior Royal Air Force -LRB- RAF -RRB- commander .. Royal Air Force. Royal Air Force. Air Chief Marshal. Air Chief Marshal. A helicopter pilot with operational service in Northern Ireland , the Falklands War and Iraq War , Pulford commanded RAF Odiham and No. 2 Group , and served as Assistant Chief of Defence Staff Operations , before taking up the post of Deputy Commander-in-Chief Personnel at Air Command and Air Member for Personnel in 2010 .. Air Member for Personnel. Air Member for Personnel. RAF Odiham. RAF Odiham. Falklands War. Falklands War. Iraq War. Iraq War. helicopter pilot. helicopter pilot. Air Command. RAF Air Command. He became Chief of the Air Staff -LRB- CAS -RRB- on 31 July 2013 , retiring from the Royal Air Force on 12 July 2016 .. Royal Air Force. Royal Air Force. Chief of the Air Staff. Chief of the Air Staff ( United Kingdom )
not_related.