[Marie] and [Bobby] are siblings and best friends. They do everything together. Sometimes [Marie] invites her mom, [David]. [James] is [Bobby]'s favorite grandfather.
('David', 'James')
[Marie] and [Bobby] are siblings and best friends. They do everything together. Sometimes [Marie] invites her mom, [David]. [James] is [Bobby]'s favorite grandfather.
[{('David', 'father', 'James'): [('David', 'son', 'Bobby'), ('Bobby', 'grandfather', 'James')]}, {('David', 'son', 'Bobby'): [('David', 'daughter', 'Marie'), ('Marie', 'brother', 'Bobby')]}]
['daughter', 'brother', 'grandfather']