[Lena] was having coffee with her brother, [Hugh], and her daughter, [Mildred]. [Mildred]'s grandmother, [Frances], came in and asked if she could have some coffee too.
('Hugh', 'Frances')
[Lena] was having coffee with her brother, [Hugh], and her daughter, [Mildred]. [Mildred]'s grandmother, [Frances], came in and asked if she could have some coffee too.
[{('Hugh', 'mother', 'Frances'): [('Hugh', 'sister', 'Lena'), ('Lena', 'mother', 'Frances')]}, {('Lena', 'mother', 'Frances'): [('Lena', 'daughter', 'Mildred'), ('Mildred', 'grandmother', 'Frances')]}]
['sister', 'daughter', 'grandmother']