[Joshua] and his daughter, [Andrea] go to concerts every week. [Don] sent flowers to his mother [Lynn] for Mother's Day. [Lynn] and her husband [Joshua] celebrated their anniversary last night. They went out to a nice restaurant to celebrate.
('Don', 'Andrea')
[Don] sent flowers to his mother [Lynn] for Mother's Day. [Lynn] and her husband [Joshua] celebrated their anniversary last night. They went out to a nice restaurant to celebrate. [Joshua] and his daughter, [Andrea] go to concerts every week.
[{('Don', 'sister', 'Andrea'): [('Don', 'mother', 'Lynn'), ('Lynn', 'daughter', 'Andrea')]}, {('Lynn', 'daughter', 'Andrea'): [('Lynn', 'husband', 'Joshua'), ('Joshua', 'daughter', 'Andrea')]}]
['mother', 'husband', 'daughter']