While [Wesley] was playing soccer with his son [Martha], his wife [Lena] took her daughter [Mildred] to the cinema.
('Martha', 'Mildred')
While [Wesley] was playing soccer with his son [Martha], his wife [Lena] took her daughter [Mildred] to the cinema.
[{('Martha', 'sister', 'Mildred'): [('Martha', 'father', 'Wesley'), ('Wesley', 'daughter', 'Mildred')]}, {('Wesley', 'daughter', 'Mildred'): [('Wesley', 'wife', 'Lena'), ('Lena', 'daughter', 'Mildred')]}]
['father', 'wife', 'daughter']