[Marie] went shopping with her daughter [Michelle]. [Michelle]'s sister [Elsie] was too busy to join them. Now that the weekend was here, [Robert] kept his promise to his daughter [Elsie] and took her out shopping. [Marie] took her son [Allan] to the football game.
('Robert', 'Allan')
Now that the weekend was here, [Robert] kept his promise to his daughter [Elsie] and took her out shopping. [Marie] went shopping with her daughter [Michelle]. [Michelle]'s sister [Elsie] was too busy to join them. [Marie] took her son [Allan] to the football game.
[{('Robert', 'son', 'Allan'): [('Robert', 'daughter', 'Elsie'), ('Elsie', 'brother', 'Allan')]}, {('Elsie', 'brother', 'Allan'): [('Elsie', 'mother', 'Marie'), ('Marie', 'son', 'Allan')]}, {('Elsie', 'mother', 'Marie'): [('Elsie', 'sister', 'Michelle'), ('Michelle', 'mother', 'Marie')]}]
['daughter', 'sister', 'mother', 'son']