[Emma] was cooking dinner for her father, [Antonio]. [Harold], [Antonio]'s father, was there too. [Tracy]'s daughter [Emma] and brother [Pedro] went to the shooting range today.
('Pedro', 'Harold')
[Tracy]'s daughter [Emma] and brother [Pedro] went to the shooting range today. [Emma] was cooking dinner for her father, [Antonio]. [Harold], [Antonio]'s father, was there too.
[{('Pedro', 'father', 'Harold'): [('Pedro', 'sister', 'Tracy'), ('Tracy', 'father', 'Harold')]}, {('Tracy', 'father', 'Harold'): [('Tracy', 'daughter', 'Emma'), ('Emma', 'grandfather', 'Harold')]}, {('Emma', 'grandfather', 'Harold'): [('Emma', 'father', 'Antonio'), ('Antonio', 'father', 'Harold')]}]
['sister', 'daughter', 'father', 'father']