Question: Walter Scott of Harden (before 1563 – 1629), also known as Auld Wat, was a notorious Border Reiver, what's the name of the 16th century tower house, about 3.5 mi west of Hawick, Scottish Borders?
{'answer': 'Harden Castle', 'supporting_facts': [['Walter Scott of Harden', 0], ['Harden Castle', 0]]}