[Ashley] called her son, [Nicholas], and told him about a cool new theme park that had just opened up in her town. [Nicholas] decided to take his young son, [Dennis], to the new theme park.
('Ashley', 'Dennis')
[Ashley] called her son, [Nicholas], and told him about a cool new theme park that had just opened up in her town. [Nicholas] decided to take his young son, [Dennis], to the new theme park.
[{('Ashley', 'grandson', 'Dennis'): [('Ashley', 'son', 'Nicholas'), ('Nicholas', 'son', 'Dennis')]}]
['son', 'son']