[Rebecca]'s father, [Pedro], was so proud to see her graduate. [Pedro]'s father, [Harold], was glad to see him so happy. [Harold] told his daughter, [Tracy], to clean her room. [Tracy] complained to her sister, [Beverly], about having to clean her room.
('Rebecca', 'Beverly')
[Rebecca]'s father, [Pedro], was so proud to see her graduate. [Pedro]'s father, [Harold], was glad to see him so happy. [Harold] told his daughter, [Tracy], to clean her room. [Tracy] complained to her sister, [Beverly], about having to clean her room.
[{('Rebecca', 'aunt', 'Beverly'): [('Rebecca', 'father', 'Pedro'), ('Pedro', 'sister', 'Beverly')]}, {('Pedro', 'sister', 'Beverly'): [('Pedro', 'father', 'Harold'), ('Harold', 'daughter', 'Beverly')]}, {('Harold', 'daughter', 'Beverly'): [('Harold', 'daughter', 'Tracy'), ('Tracy', 'sister', 'Beverly')]}]
['father', 'father', 'daughter', 'sister']