[Michael] and his sister [Vanetta] were hoping for a snow day. [Gloria] surprised her husband [Michael] by send flowers to his office on their anniversary. [Vanetta] called her mother [David] to let her know she will be back home soon.
('Gloria', 'David')
[Gloria] surprised her husband [Michael] by send flowers to his office on their anniversary. [Michael] and his sister [Vanetta] were hoping for a snow day. [Vanetta] called her mother [David] to let her know she will be back home soon.
[{('Gloria', 'mother-in-law', 'David'): [('Gloria', 'husband', 'Michael'), ('Michael', 'mother', 'David')]}, {('Michael', 'mother', 'David'): [('Michael', 'sister', 'Vanetta'), ('Vanetta', 'mother', 'David')]}]
['husband', 'sister', 'mother']