[Bret] tripped his brother [Jose] in the living room. [Jose] cooked dinner for his wife [Loretta] [Katherine] took her son [Bret] to the mall to shop for school clothes.
('Katherine', 'Loretta')
[Katherine] took her son [Bret] to the mall to shop for school clothes. [Bret] tripped his brother [Jose] in the living room. [Jose] cooked dinner for his wife [Loretta]
[{('Katherine', 'daughter-in-law', 'Loretta'): [('Katherine', 'son', 'Jose'), ('Jose', 'wife', 'Loretta')]}, {('Katherine', 'son', 'Jose'): [('Katherine', 'son', 'Bret'), ('Bret', 'brother', 'Jose')]}]