[Ronald]'s mother, [Marie], has no time for him anymore. She's too busy with her new son, [Allan]. [Mario] took his brother [Allan] to get lunch at a local diner. [Tracy] and her nephew [Mario] played the piano together.
('Ronald', 'Tracy')
[Ronald]'s mother, [Marie], has no time for him anymore. She's too busy with her new son, [Allan]. [Mario] took his brother [Allan] to get lunch at a local diner. [Tracy] and her nephew [Mario] played the piano together.
[{('Ronald', 'aunt', 'Tracy'): [('Ronald', 'mother', 'Marie'), ('Marie', 'sister', 'Tracy')]}, {('Marie', 'sister', 'Tracy'): [('Marie', 'son', 'Mario'), ('Mario', 'aunt', 'Tracy')]}, {('Marie', 'son', 'Mario'): [('Marie', 'son', 'Allan'), ('Allan', 'brother', 'Mario')]}]
['mother', 'son', 'brother', 'aunt']