[John]'s wife, [Angelica], planned a surprise visit to her friends [Robert] drove his daughter [Michelle] to soccer practice. [Angelica] has a sister named [Michelle] and a brother named [Ronald].
('John', 'Robert')
[John]'s wife, [Angelica], planned a surprise visit to her friends [Angelica] has a sister named [Michelle] and a brother named [Ronald]. [Robert] drove his daughter [Michelle] to soccer practice.
[{('John', 'father-in-law', 'Robert'): [('John', 'wife', 'Angelica'), ('Angelica', 'father', 'Robert')]}, {('Angelica', 'father', 'Robert'): [('Angelica', 'sister', 'Michelle'), ('Michelle', 'father', 'Robert')]}, {('Angelica', 'sister', 'Michelle'): [('Angelica', 'brother', 'Ronald'), ('Ronald', 'sister', 'Michelle')]}]
['wife', 'brother', 'sister', 'father']