Question: Blackledge-Kearney was used by which administrator for a temporary headquarters during the crossing of the Hudson in the late 1770s?
{'answer': 'Charles Cornwallis, 1st Marquess Cornwallis', 'supporting_facts': [['Blackledge-Kearney', 3], ['Charles Cornwallis, 1st Marquess Cornwallis', 0]]}