[Wilhelmina] took her younger sister [Anna] to the carnival last weekend. [Frances] was spending the weekend with her grandson, [Pete]. [Pete]'s sister [Anna] was supposed to come too, but she was busy and could n't make it.
('Frances', 'Wilhelmina')
[Frances] was spending the weekend with her grandson, [Pete]. [Pete]'s sister [Anna] was supposed to come too, but she was busy and could n't make it. [Wilhelmina] took her younger sister [Anna] to the carnival last weekend.
[{('Frances', 'granddaughter', 'Wilhelmina'): [('Frances', 'granddaughter', 'Anna'), ('Anna', 'sister', 'Wilhelmina')]}, {('Frances', 'granddaughter', 'Anna'): [('Frances', 'grandson', 'Pete'), ('Pete', 'sister', 'Anna')]}]
['grandson', 'sister', 'sister']