[Allan] bought his sister [Michelle] a video game for her birthday. She said it was her favorite game and gave him a big hug. [Elsie] is always around her brother [Allan]. [Ronald] took his wife [Elsie] to the new restaurant for dinner last Saturday. [Robert] and his daughter, [Michelle] had tea.
('Ronald', 'Robert')
[Ronald] took his wife [Elsie] to the new restaurant for dinner last Saturday. [Elsie] is always around her brother [Allan]. [Allan] bought his sister [Michelle] a video game for her birthday. She said it was her favorite game and gave him a big hug. [Robert] and his daughter, [Michelle] had tea.
[{('Ronald', 'father-in-law', 'Robert'): [('Ronald', 'wife', 'Elsie'), ('Elsie', 'father', 'Robert')]}, {('Elsie', 'father', 'Robert'): [('Elsie', 'sister', 'Michelle'), ('Michelle', 'father', 'Robert')]}, {('Elsie', 'sister', 'Michelle'): [('Elsie', 'brother', 'Allan'), ('Allan', 'sister', 'Michelle')]}]
['wife', 'brother', 'sister', 'father']