Question: The Machine in the Garden: Technology and the Pastoral Ideal in America, is a 1964 work of literary criticism written by Leo Marx and published by Oxford University Press, trope notably appears in Henry David Thoreau's "Walden" (1854) when the whistling sound of a steam locomotive disrupts the natural landscape of which lake in Concord, Massachusetts in the which country?
{'answer': 'United States', 'supporting_facts': [['The Machine in the Garden', 2], ['Walden Pond', 0]]}