[Lena] could n't wait for the surprise birthday party that she was throwing for her brother [Joshua] next weekend. [Mildred] took her mother [Lena] and her grandfather [James] out to a restaurant for dinner.
('Joshua', 'James')
[Lena] could n't wait for the surprise birthday party that she was throwing for her brother [Joshua] next weekend. [Mildred] took her mother [Lena] and her grandfather [James] out to a restaurant for dinner.
[{('Joshua', 'father', 'James'): [('Joshua', 'sister', 'Lena'), ('Lena', 'father', 'James')]}, {('Lena', 'father', 'James'): [('Lena', 'daughter', 'Mildred'), ('Mildred', 'grandfather', 'James')]}]
['sister', 'daughter', 'grandfather']