[Robert] took his daughter [Elsie] out for ice cream. His other daughter, [Michelle], was still in school and could not go. [John] likes playing catch with his sister [Michelle], but his brother [Allan] never wants to play.
('Elsie', 'Allan')
[Robert] took his daughter [Elsie] out for ice cream. His other daughter, [Michelle], was still in school and could not go. [John] likes playing catch with his sister [Michelle], but his brother [Allan] never wants to play.
[{('Elsie', 'brother', 'Allan'): [('Elsie', 'father', 'Robert'), ('Robert', 'son', 'Allan')]}, {('Robert', 'son', 'Allan'): [('Robert', 'daughter', 'Michelle'), ('Michelle', 'brother', 'Allan')]}, {('Michelle', 'brother', 'Allan'): [('Michelle', 'brother', 'John'), ('John', 'brother', 'Allan')]}]
['father', 'daughter', 'brother', 'brother']