[Andrea] called [Juanita], her sister, to see if she wanted to go out to eat. [Thomas] went fishing with his grandfather [James]. They spent all day together. [Andrea] and her brother [Thomas] were having a wonderful time at Disneyland.
('Juanita', 'James')
[Andrea] called [Juanita], her sister, to see if she wanted to go out to eat. [Andrea] and her brother [Thomas] were having a wonderful time at Disneyland. [Thomas] went fishing with his grandfather [James]. They spent all day together.
[{('Juanita', 'grandfather', 'James'): [('Juanita', 'sister', 'Andrea'), ('Andrea', 'grandfather', 'James')]}, {('Andrea', 'grandfather', 'James'): [('Andrea', 'brother', 'Thomas'), ('Thomas', 'grandfather', 'James')]}]
['sister', 'brother', 'grandfather']