[Paul] loves playing hide and seek with his grandfather [Harold]. [Pedro] and his siblings [Robert] and [Beverly] made plans to take [Beverly]'s son [Paul] out for his graduation.
('Robert', 'Harold')
[Pedro] and his siblings [Robert] and [Beverly] made plans to take [Beverly]'s son [Paul] out for his graduation. [Paul] loves playing hide and seek with his grandfather [Harold].
[{('Robert', 'father', 'Harold'): [('Robert', 'brother', 'Pedro'), ('Pedro', 'father', 'Harold')]}, {('Pedro', 'father', 'Harold'): [('Pedro', 'sister', 'Beverly'), ('Beverly', 'father', 'Harold')]}, {('Beverly', 'father', 'Harold'): [('Beverly', 'son', 'Paul'), ('Paul', 'grandfather', 'Harold')]}]
['brother', 'sister', 'son', 'grandfather']