[Pedro]'s wife, [Dorothy], was busy helping her daughter, [Cheryl], buy a new house. [Cheryl] 'a grandfather, [Harold], has a few good choices lined up for her to see, too. [Dorothy] and her husband, [Pedro], are going to Florida for their second anniversary.
('Dorothy', 'Harold')
[Dorothy] and her husband, [Pedro], are going to Florida for their second anniversary. [Pedro]'s wife, [Dorothy], was busy helping her daughter, [Cheryl], buy a new house. [Cheryl] 'a grandfather, [Harold], has a few good choices lined up for her to see, too.
[{('Dorothy', 'father-in-law', 'Harold'): [('Dorothy', 'husband', 'Pedro'), ('Pedro', 'father', 'Harold')]}, {('Pedro', 'father', 'Harold'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'grandfather', 'Harold')]}, {('Pedro', 'daughter', 'Cheryl'): [('Pedro', 'wife', 'Dorothy'), ('Dorothy', 'daughter', 'Cheryl')]}]
['husband', 'wife', 'daughter', 'grandfather']