[James]'s son is [Hugh]. [Hugh] and his father always go fishing together on Sundays and have a great time together. [Martha] and her mother [Lena] visited her grandfather [James]
('Lena', 'Hugh')
[Martha] and her mother [Lena] visited her grandfather [James] [James]'s son is [Hugh]. [Hugh] and his father always go fishing together on Sundays and have a great time together.
[{('Lena', 'brother', 'Hugh'): [('Lena', 'father', 'James'), ('James', 'son', 'Hugh')]}, {('Lena', 'father', 'James'): [('Lena', 'daughter', 'Martha'), ('Martha', 'grandfather', 'James')]}]
['daughter', 'grandfather', 'son']