[Chris] bought a new refrigerator for his mother [Lena]. [James] went to the baseball game with his son [Joshua] [Lena] and her father, [James], had an argument over the weekend. However, they made up by Monday.
('Chris', 'Joshua')
[Chris] bought a new refrigerator for his mother [Lena]. [Lena] and her father, [James], had an argument over the weekend. However, they made up by Monday. [James] went to the baseball game with his son [Joshua]
[{('Chris', 'uncle', 'Joshua'): [('Chris', 'mother', 'Lena'), ('Lena', 'brother', 'Joshua')]}, {('Lena', 'brother', 'Joshua'): [('Lena', 'father', 'James'), ('James', 'son', 'Joshua')]}]
['mother', 'father', 'son']