[James] fell in love with [Heather] at first sight and soon after they wed. [Jeffrey] and his brother [James] went to the park. They threw a ball around and played with their dog. [Jeffrey] went to visit his sister [Rebecca] to the hospital last week. [Dorothy]'s mom, [Rebecca] got ready for the party.
('Heather', 'Dorothy')
[James] fell in love with [Heather] at first sight and soon after they wed. [Jeffrey] and his brother [James] went to the park. They threw a ball around and played with their dog. [Jeffrey] went to visit his sister [Rebecca] to the hospital last week. [Dorothy]'s mom, [Rebecca] got ready for the party.
[{('Heather', 'mother-in-law', 'Dorothy'): [('Heather', 'husband', 'James'), ('James', 'mother', 'Dorothy')]}, {('James', 'mother', 'Dorothy'): [('James', 'brother', 'Jeffrey'), ('Jeffrey', 'mother', 'Dorothy')]}, {('Jeffrey', 'mother', 'Dorothy'): [('Jeffrey', 'sister', 'Rebecca'), ('Rebecca', 'mother', 'Dorothy')]}]
['husband', 'brother', 'sister', 'mother']