story: [Marian] misses her father [Stanley] when she is at school. [Michael]'s son, [Paul], loves trains. [Michael]'s sister, [Marian], got him a nice model trail set for his birthday.
query: ('Paul', 'Stanley')
clean_story: [Michael]'s son, [Paul], loves trains. [Michael]'s sister, [Marian], got him a nice model trail set for his birthday. [Marian] misses her father [Stanley] when she is at school.
proof_state: [{('Paul', 'grandfather', 'Stanley'): [('Paul', 'father', 'Michael'), ('Michael', 'father', 'Stanley')]}, {('Michael', 'father', 'Stanley'): [('Michael', 'sister', 'Marian'), ('Marian', 'father', 'Stanley')]}]