[Clarence] takes his grandmother, [Frances] and his father [Lynn] shopping each month.Sometimes, [Lynn]'s husband, [Joshua] goes along.
('Joshua', 'Frances')
[Clarence] takes his grandmother, [Frances] and his father [Lynn] shopping each month.Sometimes, [Lynn]'s husband, [Joshua] goes along.
[{('Joshua', 'mother-in-law', 'Frances'): [('Joshua', 'wife', 'Lynn'), ('Lynn', 'mother', 'Frances')]}, {('Lynn', 'mother', 'Frances'): [('Lynn', 'son', 'Clarence'), ('Clarence', 'grandmother', 'Frances')]}]
['wife', 'son', 'grandmother']