[Mario] took his brother [Ronald] to Las Vegas to go gambling. [Harold] took his grandson [Ronald] to the store to buy some new books. [Marie] loves to make cookies for her son. His name is [Mario]. [Marie] was honored to take her son [Allan] to the mother son dance at her son's school last Friday.
('Allan', 'Harold')
[Marie] was honored to take her son [Allan] to the mother son dance at her son's school last Friday. [Marie] loves to make cookies for her son. His name is [Mario]. [Mario] took his brother [Ronald] to Las Vegas to go gambling. [Harold] took his grandson [Ronald] to the store to buy some new books.
[{('Allan', 'grandfather', 'Harold'): [('Allan', 'brother', 'Mario'), ('Mario', 'grandfather', 'Harold')]}, {('Mario', 'grandfather', 'Harold'): [('Mario', 'brother', 'Ronald'), ('Ronald', 'grandfather', 'Harold')]}, {('Allan', 'brother', 'Mario'): [('Allan', 'mother', 'Marie'), ('Marie', 'son', 'Mario')]}]
['mother', 'son', 'brother', 'grandfather']