[Erika] went over to her uncle [Robert]'s house for dinner. [Robert] was a gourmet cook, and tonight he made a delicious crown of lamb. [Erika] is a sister of [Bobby]. [Beverly] and her brother [Robert] sat down together to clip coupons. [Tracy]'s son, [Bobby], was busy with school activities and forgot to meet his sister.
('Tracy', 'Beverly')
[Tracy]'s son, [Bobby], was busy with school activities and forgot to meet his sister. [Erika] is a sister of [Bobby]. [Erika] went over to her uncle [Robert]'s house for dinner. [Robert] was a gourmet cook, and tonight he made a delicious crown of lamb. [Beverly] and her brother [Robert] sat down together to clip coupons.
[{('Tracy', 'sister', 'Beverly'): [('Tracy', 'brother', 'Robert'), ('Robert', 'sister', 'Beverly')]}, {('Tracy', 'brother', 'Robert'): [('Tracy', 'daughter', 'Erika'), ('Erika', 'uncle', 'Robert')]}, {('Tracy', 'daughter', 'Erika'): [('Tracy', 'son', 'Bobby'), ('Bobby', 'sister', 'Erika')]}]
['son', 'sister', 'uncle', 'sister']