[Lena] was cutting vegetables with her brother [Joshua] and sister [Cindy]. [Lena] 'daughter [Martha] helped cut some fruit.
('Martha', 'Joshua')
[Lena] was cutting vegetables with her brother [Joshua] and sister [Cindy]. [Lena] 'daughter [Martha] helped cut some fruit.
[{('Martha', 'uncle', 'Joshua'): [('Martha', 'mother', 'Lena'), ('Lena', 'brother', 'Joshua')]}, {('Lena', 'brother', 'Joshua'): [('Lena', 'sister', 'Cindy'), ('Cindy', 'brother', 'Joshua')]}]
['mother', 'sister', 'brother']