[Don] and his sister [Andrea] are going for a walk. [Frances] visited her granddaughter [Juanita] as a surprise for her birthday. As an added bonus, [Juanita]'s sister [Andrea] surprised [Juanita] by coming too.
('Don', 'Frances')
[Don] and his sister [Andrea] are going for a walk. [Frances] visited her granddaughter [Juanita] as a surprise for her birthday. As an added bonus, [Juanita]'s sister [Andrea] surprised [Juanita] by coming too.
[{('Don', 'grandmother', 'Frances'): [('Don', 'sister', 'Juanita'), ('Juanita', 'grandmother', 'Frances')]}, {('Don', 'sister', 'Juanita'): [('Don', 'sister', 'Andrea'), ('Andrea', 'sister', 'Juanita')]}]
['sister', 'sister', 'grandmother']