[Latisha] had to take her sons [James] and [Rich] to ball practice after school and then she picked her daughter [Katherine] up and they went grocery shopping.
('Katherine', 'Rich')
[Latisha] had to take her sons [James] and [Rich] to ball practice after school and then she picked her daughter [Katherine] up and they went grocery shopping.
[{('Katherine', 'brother', 'Rich'): [('Katherine', 'mother', 'Latisha'), ('Latisha', 'son', 'Rich')]}, {('Latisha', 'son', 'Rich'): [('Latisha', 'son', 'James'), ('James', 'brother', 'Rich')]}]