[Rich] took his sister [Helen] out to dinner for her birthday. [Sandy] took her mother [Alma] to the doctor. Later, [Alma] told her sister [Helen] what the doctor said.
('Sandy', 'Rich')
[Sandy] took her mother [Alma] to the doctor. Later, [Alma] told her sister [Helen] what the doctor said. [Rich] took his sister [Helen] out to dinner for her birthday.
[{('Sandy', 'uncle', 'Rich'): [('Sandy', 'mother', 'Alma'), ('Alma', 'brother', 'Rich')]}, {('Alma', 'brother', 'Rich'): [('Alma', 'sister', 'Helen'), ('Helen', 'brother', 'Rich')]}]