[John] made a sandwich for his son [Bret]. [Bret]'s brother [Joshua] ate an apple instead. [John] asked his father, [Scott] to help him build a birdhouse.
('Scott', 'Joshua')
[John] asked his father, [Scott] to help him build a birdhouse. [John] made a sandwich for his son [Bret]. [Bret]'s brother [Joshua] ate an apple instead.
[{('Scott', 'grandson', 'Joshua'): [('Scott', 'son', 'John'), ('John', 'son', 'Joshua')]}, {('John', 'son', 'Joshua'): [('John', 'son', 'Bret'), ('Bret', 'brother', 'Joshua')]}]