story: [Donna] and her father [Dwight] like to spend the holidays together. [Dwight] will often invite his father [Jason] to join them.
query: ('Donna', 'Jason')
clean_story: [Donna] and her father [Dwight] like to spend the holidays together. [Dwight] will often invite his father [Jason] to join them.
proof_state: [{('Donna', 'grandfather', 'Jason'): [('Donna', 'father', 'Dwight'), ('Dwight', 'father', 'Jason')]}]