[James] needed his brother, [Jeffrey], to help with a problem [Roberto] and [Jeffrey] are brothers who look nothing alike. [Pedro] and his sister [Beverly] were twins. Still, they did n't look very much alike. [Pedro] has a son named [Roberto] that looks exactly like him.
('James', 'Beverly')
[James] needed his brother, [Jeffrey], to help with a problem [Roberto] and [Jeffrey] are brothers who look nothing alike. [Pedro] has a son named [Roberto] that looks exactly like him. [Pedro] and his sister [Beverly] were twins. Still, they did n't look very much alike.
[{('James', 'aunt', 'Beverly'): [('James', 'father', 'Pedro'), ('Pedro', 'sister', 'Beverly')]}, {('James', 'father', 'Pedro'): [('James', 'brother', 'Roberto'), ('Roberto', 'father', 'Pedro')]}, {('James', 'brother', 'Roberto'): [('James', 'brother', 'Jeffrey'), ('Jeffrey', 'brother', 'Roberto')]}]
['brother', 'brother', 'father', 'sister']