[Beverly] and [Robert] had a picnic at the park. They had sandwiches and salad. [Harold] and his daughter [Dorothy] went to the movies. [Beverly], [Dorothy]'s sister, had to stay home as she was sick. [Robert] and his son [Allan] went to the skating rink.
('Allan', 'Harold')
[Robert] and his son [Allan] went to the skating rink. [Beverly] and [Robert] had a picnic at the park. They had sandwiches and salad. [Harold] and his daughter [Dorothy] went to the movies. [Beverly], [Dorothy]'s sister, had to stay home as she was sick.
[{('Allan', 'grandfather', 'Harold'): [('Allan', 'father', 'Robert'), ('Robert', 'father', 'Harold')]}, {('Robert', 'father', 'Harold'): [('Robert', 'sister', 'Beverly'), ('Beverly', 'father', 'Harold')]}, {('Beverly', 'father', 'Harold'): [('Beverly', 'sister', 'Dorothy'), ('Dorothy', 'father', 'Harold')]}]
['father', 'sister', 'sister', 'father']