[Joshua] liked to take his wife [Lynn] and son [Joseph] out to dinner. Sometimes [Lynn] took her son [Thomas] out by himself instead.
('Joseph', 'Thomas')
[Joshua] liked to take his wife [Lynn] and son [Joseph] out to dinner. Sometimes [Lynn] took her son [Thomas] out by himself instead.
[{('Joseph', 'brother', 'Thomas'): [('Joseph', 'father', 'Joshua'), ('Joshua', 'son', 'Thomas')]}, {('Joshua', 'son', 'Thomas'): [('Joshua', 'wife', 'Lynn'), ('Lynn', 'son', 'Thomas')]}]
['father', 'wife', 'son']