[Hugh] was busy planning his nephew, [Chris]'s, birthday party with his sister. [Martha] called her father [Wesley] on the phone, but he was on the other line with his son [Chris]. He told [Martha] he'd call her back in a few minutes.
('Martha', 'Hugh')
[Martha] called her father [Wesley] on the phone, but he was on the other line with his son [Chris]. He told [Martha] he'd call her back in a few minutes. [Hugh] was busy planning his nephew, [Chris]'s, birthday party with his sister.
[{('Martha', 'uncle', 'Hugh'): [('Martha', 'father', 'Wesley'), ('Wesley', 'brother', 'Hugh')]}, {('Wesley', 'brother', 'Hugh'): [('Wesley', 'son', 'Chris'), ('Chris', 'uncle', 'Hugh')]}]
['father', 'son', 'uncle']