[Adam] enjoyed talking to his granddaughter [Rebbeca] when she came over to visit. [Tammy] bought gifts for her grandfather [Adam] and her sister [Beatrice] when she went to the mall.
[Tammy] bought gifts for her grandfather [Adam] and her sister [Beatrice] when she went to the mall.
[{('Adam', 'granddaughter', 'Beatrice'): [('Adam', 'granddaughter', 'Tammy'), ('Tammy', 'sister', 'Beatrice')]}]