[Helen] and her son [Joseph] went to the zoo and then out to dinner yesterday. [Helen] could n't wait to get off the plane to see her mother, [Dorothea]. [Rich] enjoys playing tennis with his sister and her son. Her son is named [Joseph].
('Dorothea', 'Rich')
[Helen] could n't wait to get off the plane to see her mother, [Dorothea]. [Helen] and her son [Joseph] went to the zoo and then out to dinner yesterday. [Rich] enjoys playing tennis with his sister and her son. Her son is named [Joseph].
[{('Dorothea', 'uncle', 'Rich'): [('Dorothea', 'mother', 'Helen'), ('Helen', 'brother', 'Rich')]}, {('Helen', 'brother', 'Rich'): [('Helen', 'son', 'Joseph'), ('Joseph', 'uncle', 'Rich')]}]