[Robert] and his brother [Louis] went to see a baseball game on Friday and had a great time. [Rebecca] went over to her uncle [Louis]'s house for dinner. [Louis] was a gourmet cook, and tonight he made a delicious crown of lamb. Last night, [Dorothy] went out with her sister [Beverly], accompanied by [Dorothy]'s daughter [Rebecca].
('Beverly', 'Robert')
Last night, [Dorothy] went out with her sister [Beverly], accompanied by [Dorothy]'s daughter [Rebecca]. [Rebecca] went over to her uncle [Louis]'s house for dinner. [Louis] was a gourmet cook, and tonight he made a delicious crown of lamb. [Robert] and his brother [Louis] went to see a baseball game on Friday and had a great time.
[{('Beverly', 'brother', 'Robert'): [('Beverly', 'sister', 'Dorothy'), ('Dorothy', 'brother', 'Robert')]}, {('Dorothy', 'brother', 'Robert'): [('Dorothy', 'brother', 'Louis'), ('Louis', 'brother', 'Robert')]}, {('Dorothy', 'brother', 'Louis'): [('Dorothy', 'daughter', 'Rebecca'), ('Rebecca', 'uncle', 'Louis')]}]
['sister', 'daughter', 'uncle', 'brother']