[Michael]'s mother [David] baked brownies for dessert after they had dinner. [Hugh] took his son [Michael] to school this morning because he missed the bus. [David] was playing in the sandbox with her brother [Joshua].
('Hugh', 'Joshua')
[Hugh] took his son [Michael] to school this morning because he missed the bus. [Michael]'s mother [David] baked brownies for dessert after they had dinner. [David] was playing in the sandbox with her brother [Joshua].
[{('Hugh', 'brother', 'Joshua'): [('Hugh', 'son', 'Michael'), ('Michael', 'uncle', 'Joshua')]}, {('Michael', 'uncle', 'Joshua'): [('Michael', 'mother', 'David'), ('David', 'brother', 'Joshua')]}]
['son', 'mother', 'brother']