[Mario]'s grandfather, [Harold], asked the boy what he wanted for Christmas. [Mario] told him he wanted a remote controlled car. [Robert]'s son is [Mario]. [Mario] and his father always go fishing together on Sundays and have a great time together. [Dorothy] went to dinner with her husband [Pedro]. [Pedro] always looked up to his brother [Robert].
('Dorothy', 'Harold')
[Dorothy] went to dinner with her husband [Pedro]. [Pedro] always looked up to his brother [Robert]. [Robert]'s son is [Mario]. [Mario] and his father always go fishing together on Sundays and have a great time together. [Mario]'s grandfather, [Harold], asked the boy what he wanted for Christmas. [Mario] told him he wanted a remote controlled car.
[{('Dorothy', 'father-in-law', 'Harold'): [('Dorothy', 'husband', 'Pedro'), ('Pedro', 'father', 'Harold')]}, {('Pedro', 'father', 'Harold'): [('Pedro', 'brother', 'Robert'), ('Robert', 'father', 'Harold')]}, {('Robert', 'father', 'Harold'): [('Robert', 'son', 'Mario'), ('Mario', 'grandfather', 'Harold')]}]
['husband', 'brother', 'son', 'grandfather']