Question: Admiral Sir Charles Saunders, was a Royal Navy officer, and he later became which professional head of the United Kingdom's Royal Navy and the whole Naval Service, and originally the title was the Senior Naval Lord to the Board of Admiralty when the post was created in 1689?
{'answer': 'First Sea Lord and Chief of Naval Staff', 'supporting_facts': [['Charles Saunders (Royal Navy officer)', 3], ['First Sea Lord', 0]]}