[Roy] asked his granddaughter [Cleo] to take him to a doctor's appointment. [Cleo] asked her sister [Marjorie] to come along but she said she could n't make it.
('Roy', 'Marjorie')
[Roy] asked his granddaughter [Cleo] to take him to a doctor's appointment. [Cleo] asked her sister [Marjorie] to come along but she said she could n't make it.
[{('Roy', 'granddaughter', 'Marjorie'): [('Roy', 'granddaughter', 'Cleo'), ('Cleo', 'sister', 'Marjorie')]}]