[Marie] played basketball with her brother [Pedro]. [Marie]'s sister, [Beverly], watched from the sidelines. [Tracy] was shopping with her sister [Beverly] when she got a call from her daughter [Erika].
('Erika', 'Pedro')
[Tracy] was shopping with her sister [Beverly] when she got a call from her daughter [Erika]. [Marie] played basketball with her brother [Pedro]. [Marie]'s sister, [Beverly], watched from the sidelines.
[{('Erika', 'uncle', 'Pedro'): [('Erika', 'mother', 'Tracy'), ('Tracy', 'brother', 'Pedro')]}, {('Tracy', 'brother', 'Pedro'): [('Tracy', 'sister', 'Marie'), ('Marie', 'brother', 'Pedro')]}, {('Tracy', 'sister', 'Marie'): [('Tracy', 'sister', 'Beverly'), ('Beverly', 'sister', 'Marie')]}]
['mother', 'sister', 'sister', 'brother']