[Joshua] likes playing catch with his sister's son. His name is [Irvin]. [Lena] took her son [Irvin] to the mall to shop for school clothes. [Lena] and her sister [Cindy] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while.
('Cindy', 'Joshua')
[Lena] and her sister [Cindy] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while. [Lena] took her son [Irvin] to the mall to shop for school clothes. [Joshua] likes playing catch with his sister's son. His name is [Irvin].
[{('Cindy', 'brother', 'Joshua'): [('Cindy', 'sister', 'Lena'), ('Lena', 'brother', 'Joshua')]}, {('Lena', 'brother', 'Joshua'): [('Lena', 'son', 'Irvin'), ('Irvin', 'uncle', 'Joshua')]}]
['sister', 'son', 'uncle']