[Scott] has a lovely granddaughter. [Glenda] is the name of his granddaughter. [Cheryl] picked up her brother [Keith] from the airport. Then they went to her sister [Glenda]'s house for lunch.
('Keith', 'Scott')
[Cheryl] picked up her brother [Keith] from the airport. Then they went to her sister [Glenda]'s house for lunch. [Scott] has a lovely granddaughter. [Glenda] is the name of his granddaughter.
[{('Keith', 'grandfather', 'Scott'): [('Keith', 'sister', 'Glenda'), ('Glenda', 'grandfather', 'Scott')]}, {('Keith', 'sister', 'Glenda'): [('Keith', 'sister', 'Cheryl'), ('Cheryl', 'sister', 'Glenda')]}]