[Angelica] asked her father [Robert] if he could beat up a bully at school for her. [Robert] told her she had to learn to fight her own battles, but he did teach her how to throw a punch. [Ronald]'s father [Robert] is going to coach the team this year. [Mario] is going to pick his grandfather, [Harold] up after he has dinner with his brother, [Ronald].
('Angelica', 'Harold')
[Angelica] asked her father [Robert] if he could beat up a bully at school for her. [Robert] told her she had to learn to fight her own battles, but he did teach her how to throw a punch. [Ronald]'s father [Robert] is going to coach the team this year. [Mario] is going to pick his grandfather, [Harold] up after he has dinner with his brother, [Ronald].
[{('Angelica', 'grandfather', 'Harold'): [('Angelica', 'father', 'Robert'), ('Robert', 'father', 'Harold')]}, {('Robert', 'father', 'Harold'): [('Robert', 'son', 'Mario'), ('Mario', 'grandfather', 'Harold')]}, {('Robert', 'son', 'Mario'): [('Robert', 'son', 'Ronald'), ('Ronald', 'brother', 'Mario')]}]
['father', 'son', 'brother', 'grandfather']