[Carrie] mows the lawn for her sister, [Anna] and her grandfather, [James]. [Pete]'s sister [Anna] asked him for some help planting her garden.
('James', 'Pete')
[Carrie] mows the lawn for her sister, [Anna] and her grandfather, [James]. [Pete]'s sister [Anna] asked him for some help planting her garden.
[{('James', 'grandson', 'Pete'): [('James', 'granddaughter', 'Carrie'), ('Carrie', 'brother', 'Pete')]}, {('Carrie', 'brother', 'Pete'): [('Carrie', 'sister', 'Anna'), ('Anna', 'brother', 'Pete')]}]
['granddaughter', 'sister', 'brother']