[Michelle] and her mother [Marie] visited her grandfather [Harold] [Pedro] takes his wife [Dorothy] out for their anniversary. [Marie] called [Dorothy], her sister, to see if she wanted to go out to eat.
('Pedro', 'Harold')
[Pedro] takes his wife [Dorothy] out for their anniversary. [Marie] called [Dorothy], her sister, to see if she wanted to go out to eat. [Michelle] and her mother [Marie] visited her grandfather [Harold]
[{('Pedro', 'father-in-law', 'Harold'): [('Pedro', 'wife', 'Dorothy'), ('Dorothy', 'father', 'Harold')]}, {('Dorothy', 'father', 'Harold'): [('Dorothy', 'sister', 'Marie'), ('Marie', 'father', 'Harold')]}, {('Marie', 'father', 'Harold'): [('Marie', 'daughter', 'Michelle'), ('Michelle', 'grandfather', 'Harold')]}]
['wife', 'sister', 'daughter', 'grandfather']