[Lynn] and her brother [Hugh] went to the department store. [Bobby], [Hugh]'s son, came with them. [Bobby] asked his grandmother [Frances] to help him tie his shoes. [Frances] told him he was old enough to do it himself.
('Lynn', 'Frances')
[Lynn] and her brother [Hugh] went to the department store. [Bobby], [Hugh]'s son, came with them. [Bobby] asked his grandmother [Frances] to help him tie his shoes. [Frances] told him he was old enough to do it himself.
[{('Lynn', 'mother', 'Frances'): [('Lynn', 'brother', 'Hugh'), ('Hugh', 'mother', 'Frances')]}, {('Hugh', 'mother', 'Frances'): [('Hugh', 'son', 'Bobby'), ('Bobby', 'grandmother', 'Frances')]}]
['brother', 'son', 'grandmother']