[Chris]'s father [Wesley] and grandfather [James] went to the park to play chess. [Lena] and her husband [Wesley] had a quiet date-night at home last night.
('Lena', 'James')
[Lena] and her husband [Wesley] had a quiet date-night at home last night. [Chris]'s father [Wesley] and grandfather [James] went to the park to play chess.
[{('Lena', 'father', 'James'): [('Lena', 'son', 'Chris'), ('Chris', 'grandfather', 'James')]}, {('Lena', 'son', 'Chris'): [('Lena', 'husband', 'Wesley'), ('Wesley', 'son', 'Chris')]}]
['husband', 'son', 'grandfather']