Question: The Queen Alexandra Memorial on Marlborough Road, London, which commemorates Queen Alexandra of Denmark, consists of a bronze screen incorporating allegorical figures, set into the garden wall of Marlborough House,  a Grade I listed mansion in St James's, City of Westminster, Inner London, is the headquarters of which organization?
{'answer': 'Commonwealth of Nations', 'supporting_facts': [['Queen Alexandra Memorial', 1], ['Marlborough House', 0]]}