[Erika] took her grandfather [Harold] out to eat last Sunday after church. They had ice cream for dessert. [Dorothy] prepared a three course meal for her sister, [Tracy], and her brother, [Robert]. Since there was so much food cooked, [Tracy] invited her daughter, [Erika], to come along and join the feast.
('Robert', 'Harold')
[Dorothy] prepared a three course meal for her sister, [Tracy], and her brother, [Robert]. Since there was so much food cooked, [Tracy] invited her daughter, [Erika], to come along and join the feast. [Erika] took her grandfather [Harold] out to eat last Sunday after church. They had ice cream for dessert.
[{('Robert', 'father', 'Harold'): [('Robert', 'sister', 'Tracy'), ('Tracy', 'father', 'Harold')]}, {('Robert', 'sister', 'Tracy'): [('Robert', 'sister', 'Dorothy'), ('Dorothy', 'sister', 'Tracy')]}, {('Tracy', 'father', 'Harold'): [('Tracy', 'daughter', 'Erika'), ('Erika', 'grandfather', 'Harold')]}]
['sister', 'sister', 'daughter', 'grandfather']