[James] and his brother [Peter] always played pranks on each other [Alfred] played chess with his brother [Peter]. [Edward]'s father, [James], and grandfather, [Rudolph], went hiking during the first weekend of spring.
[James] and his brother [Peter] always played pranks on each other [Edward]'s father, [James], and grandfather, [Rudolph], went hiking during the first weekend of spring.
[{('Peter', 'father', 'Rudolph'): [('Peter', 'brother', 'James'), ('James', 'father', 'Rudolph')]}, {('James', 'father', 'Rudolph'): [('James', 'son', 'Edward'), ('Edward', 'grandfather', 'Rudolph')]}]