[Ernest] was busy planning his nephew, [Arthur]'s, birthday party with his sister. [Arthur] and his father [Herman] went jogging by the lake.
('Herman', 'Ernest')
[Arthur] and his father [Herman] went jogging by the lake. [Ernest] was busy planning his nephew, [Arthur]'s, birthday party with his sister.
[{('Herman', 'brother', 'Ernest'): [('Herman', 'son', 'Arthur'), ('Arthur', 'uncle', 'Ernest')]}]