[Franklin] loved his mother, [Martha]. [Brent] loves his mother [Martha] very much.
('Brent', 'Franklin')
[Brent] loves his mother [Martha] very much. [Franklin] loved his mother, [Martha].
[{('Brent', 'brother', 'Franklin'): [('Brent', 'mother', 'Martha'), ('Martha', 'son', 'Franklin')]}]