Question: Which Maine county had a 2010 population of over 50,000 and was where the designer of the Eaton School began his career?
{'answer': 'Somerset County', 'supporting_facts': [['Eaton School (Norridgewock, Maine)', 0], ['Eaton School (Norridgewock, Maine)', 1], ['Somerset County, Maine', 0], ['Somerset County, Maine', 1]]}