[Dale] and kyle are brothers. They went out to eat with [Wayne]'s sister [Amy].
('Dale', 'Amy')
[Dale] and kyle are brothers. They went out to eat with [Wayne]'s sister [Amy].
[{('Dale', 'sister', 'Amy'): [('Dale', 'brother', 'Wayne'), ('Wayne', 'sister', 'Amy')]}]
['brother', 'sister']