[Tracy] bought a new puppy for her son [Kevin]. This made [Kevin]'s sister [Laura] extremely jealous. [Harold] took his son, [Robert] to the movies with [Tracy], who's father is [Harold].
('Laura', 'Robert')
[Tracy] bought a new puppy for her son [Kevin]. This made [Kevin]'s sister [Laura] extremely jealous. [Harold] took his son, [Robert] to the movies with [Tracy], who's father is [Harold].
[{('Laura', 'uncle', 'Robert'): [('Laura', 'mother', 'Tracy'), ('Tracy', 'brother', 'Robert')]}, {('Laura', 'mother', 'Tracy'): [('Laura', 'brother', 'Kevin'), ('Kevin', 'mother', 'Tracy')]}, {('Tracy', 'brother', 'Robert'): [('Tracy', 'father', 'Harold'), ('Harold', 'son', 'Robert')]}]
['brother', 'mother', 'father', 'son']