[Mary] took her daughter [Lois] to see her very first ballet performance. [James] is son of [Lois].
('James', 'Mary')
[James] is son of [Lois]. [Mary] took her daughter [Lois] to see her very first ballet performance.
[{('James', 'grandmother', 'Mary'): [('James', 'mother', 'Lois'), ('Lois', 'mother', 'Mary')]}]