[Jennifer] was unhappy that her mother [Amy] did n't let her have a sleepover. But [Amy] let her son [Glen] spend the night out, which made [Jennifer] feel jealous.
('Jennifer', 'Glen')
[Jennifer] was unhappy that her mother [Amy] did n't let her have a sleepover. But [Amy] let her son [Glen] spend the night out, which made [Jennifer] feel jealous.
[{('Jennifer', 'brother', 'Glen'): [('Jennifer', 'mother', 'Amy'), ('Amy', 'son', 'Glen')]}]
['mother', 'son']