Question: Who wrote an investment guide published by Orion in 1992 who named his approach to investment when he observed that after reading a short article on the Zulu people in the an American general-interest family magazine, published ten times a year his wife was better informed on the subject than he himself was ?
{'answer': 'Jim Slater', 'supporting_facts': [['The Zulu Principle', 0], ['The Zulu Principle', 1], ["Reader's Digest", 0]]}