[Frances] made her son [Joshua] and her daughter [Cindy] a cake to take to [Cindy]'s father [James] because it was his birthday.
('Joshua', 'James')
[Frances] made her son [Joshua] and her daughter [Cindy] a cake to take to [Cindy]'s father [James] because it was his birthday.
[{('Joshua', 'father', 'James'): [('Joshua', 'sister', 'Cindy'), ('Cindy', 'father', 'James')]}, {('Joshua', 'sister', 'Cindy'): [('Joshua', 'mother', 'Frances'), ('Frances', 'daughter', 'Cindy')]}]
['mother', 'daughter', 'father']