[Katherine]'s son [Joshua] is running for class president. [Joshua]'s sister [Loretta] is helping make signs. [John]'s wife [Katherine] has very pretty eyes.
('John', 'Loretta')
[John]'s wife [Katherine] has very pretty eyes. [Katherine]'s son [Joshua] is running for class president. [Joshua]'s sister [Loretta] is helping make signs.
[{('John', 'daughter', 'Loretta'): [('John', 'wife', 'Katherine'), ('Katherine', 'daughter', 'Loretta')]}, {('Katherine', 'daughter', 'Loretta'): [('Katherine', 'son', 'Joshua'), ('Joshua', 'sister', 'Loretta')]}]