[James] met his son [Wesley] for dinner. Unfortunately [James]'s son [Francisco] could not attend. [Frances] has a son called [Francisco]. Each day they go to the park after school.
('Frances', 'Wesley')
[Frances] has a son called [Francisco]. Each day they go to the park after school. [James] met his son [Wesley] for dinner. Unfortunately [James]'s son [Francisco] could not attend.
[{('Frances', 'son', 'Wesley'): [('Frances', 'son', 'Francisco'), ('Francisco', 'brother', 'Wesley')]}, {('Francisco', 'brother', 'Wesley'): [('Francisco', 'father', 'James'), ('James', 'son', 'Wesley')]}]
['son', 'father', 'son']