Question: War at the Wall Street Journal, is the first book released by author and journalist Sarah Ellison, published on May 12, 2010, the book is an account of which Australian-born American media mogul's, purchase of the paper from the Bankroft family in 2007?
{'answer': 'Keith Rupert Murdoch', 'supporting_facts': [['War at the Wall Street Journal', 1], ['Rupert Murdoch', 0]]}