[Lena]'s daughter, [Pamela], asked her mom to read her a story. [Frances] is a girl with a grandmother named [Pamela]. [Lena] and her daughter [Martha] went shopping together last Monday and they bought new shoes for [Lena]'s kids.
('Martha', 'Frances')
[Lena] and her daughter [Martha] went shopping together last Monday and they bought new shoes for [Lena]'s kids. [Lena]'s daughter, [Pamela], asked her mom to read her a story. [Frances] is a girl with a grandmother named [Pamela].
[{('Martha', 'grandmother', 'Frances'): [('Martha', 'sister', 'Pamela'), ('Pamela', 'grandmother', 'Frances')]}, {('Martha', 'sister', 'Pamela'): [('Martha', 'mother', 'Lena'), ('Lena', 'daughter', 'Pamela')]}]
['mother', 'daughter', 'grandmother']