[Andrea]'s sister [Felicia] and husband [Joseph] took [Felicia]'s father, [Joshua], to the aquarium with them today.
('Joseph', 'Joshua')
[Andrea]'s sister [Felicia] and husband [Joseph] took [Felicia]'s father, [Joshua], to the aquarium with them today.
[{('Joseph', 'father-in-law', 'Joshua'): [('Joseph', 'wife', 'Andrea'), ('Andrea', 'father', 'Joshua')]}, {('Andrea', 'father', 'Joshua'): [('Andrea', 'sister', 'Felicia'), ('Felicia', 'father', 'Joshua')]}]
['wife', 'sister', 'father']