[Don]'s sister, [Andrea], bought movie tickets at a discount rate. [Frances] gave her son [Joshua] some money for the holidays. [Joshua] used it to buy his daughter [Andrea] a new computer.
('Don', 'Frances')
[Don]'s sister, [Andrea], bought movie tickets at a discount rate. [Frances] gave her son [Joshua] some money for the holidays. [Joshua] used it to buy his daughter [Andrea] a new computer.
[{('Don', 'grandmother', 'Frances'): [('Don', 'father', 'Joshua'), ('Joshua', 'mother', 'Frances')]}, {('Don', 'father', 'Joshua'): [('Don', 'sister', 'Andrea'), ('Andrea', 'father', 'Joshua')]}]
['sister', 'father', 'mother']