[Johnson] has a brother who is younger than him. The brother has a sister whose name is [Vanetta]. [David] sat anxiously in the airport terminal, waiting to see her son [Johnson] walk through the gate. [James] has a lovely granddaughter. [Vanetta] is the name of his granddaughter.
('David', 'James')
[David] sat anxiously in the airport terminal, waiting to see her son [Johnson] walk through the gate. [Johnson] has a brother who is younger than him. The brother has a sister whose name is [Vanetta]. [James] has a lovely granddaughter. [Vanetta] is the name of his granddaughter.
[{('David', 'father', 'James'): [('David', 'son', 'Johnson'), ('Johnson', 'grandfather', 'James')]}, {('Johnson', 'grandfather', 'James'): [('Johnson', 'sister', 'Vanetta'), ('Vanetta', 'grandfather', 'James')]}]
['son', 'sister', 'grandfather']