[Erika] and her sister [Emma] went out to lunch with [Erika]'s sister [Laura]. [Harold] was proud to attend [Tracy]'s graduation. He was very proud to have raised her into a successful young adult. [Tracy] and her daughter [Laura] went out for ice cream. [Tracy] got a cone and [Laura] got a sundae.
('Harold', 'Emma')
[Harold] was proud to attend [Tracy]'s graduation. He was very proud to have raised her into a successful young adult. [Tracy] and her daughter [Laura] went out for ice cream. [Tracy] got a cone and [Laura] got a sundae. [Erika] and her sister [Emma] went out to lunch with [Erika]'s sister [Laura].
[{('Harold', 'granddaughter', 'Emma'): [('Harold', 'granddaughter', 'Erika'), ('Erika', 'sister', 'Emma')]}, {('Harold', 'granddaughter', 'Erika'): [('Harold', 'daughter', 'Tracy'), ('Tracy', 'daughter', 'Erika')]}, {('Tracy', 'daughter', 'Erika'): [('Tracy', 'daughter', 'Laura'), ('Laura', 'sister', 'Erika')]}]
['daughter', 'daughter', 'sister', 'sister']