[Tracy] is getting married. She is looking forward to her sister, [Beverly], attending. They have n't seen each other since [Beverly] relocated to California with her husband 3 years ago. [Beverly] was playing in the sandbox with her brother [Antonio]. [Dorothy] bought a gift for her daughter [Heather]. [Dorothy]'s brother [Antonio] did n't buy anything, though.
('Tracy', 'Heather')
[Tracy] is getting married. She is looking forward to her sister, [Beverly], attending. They have n't seen each other since [Beverly] relocated to California with her husband 3 years ago. [Beverly] was playing in the sandbox with her brother [Antonio]. [Dorothy] bought a gift for her daughter [Heather]. [Dorothy]'s brother [Antonio] did n't buy anything, though.
[{('Tracy', 'niece', 'Heather'): [('Tracy', 'sister', 'Dorothy'), ('Dorothy', 'daughter', 'Heather')]}, {('Tracy', 'sister', 'Dorothy'): [('Tracy', 'sister', 'Beverly'), ('Beverly', 'sister', 'Dorothy')]}, {('Beverly', 'sister', 'Dorothy'): [('Beverly', 'brother', 'Antonio'), ('Antonio', 'sister', 'Dorothy')]}]
['sister', 'brother', 'sister', 'daughter']