[Louis] was excited because his brother [Pedro] and his sister [Tracy] were coming to visit. [Tracy] was going to bring her son [Aaron] over too. [Bobby] love his brother [Aaron]. They are always playing together.
('Pedro', 'Bobby')
[Louis] was excited because his brother [Pedro] and his sister [Tracy] were coming to visit. [Tracy] was going to bring her son [Aaron] over too. [Bobby] love his brother [Aaron]. They are always playing together.
[{('Pedro', 'nephew', 'Bobby'): [('Pedro', 'sister', 'Tracy'), ('Tracy', 'son', 'Bobby')]}, {('Tracy', 'son', 'Bobby'): [('Tracy', 'son', 'Aaron'), ('Aaron', 'brother', 'Bobby')]}, {('Pedro', 'sister', 'Tracy'): [('Pedro', 'brother', 'Louis'), ('Louis', 'sister', 'Tracy')]}]
['brother', 'sister', 'son', 'brother']