[Tracy] and her sister [Beverly] were having lunch with their mother [Shantel]. [Shantel] also invited her son [Pedro] to join them for lunch. [Tracy] asked her son [Kevin] to take her car to get the oil changed and he said he would be there around 2 o'clock.
('Kevin', 'Pedro')
[Tracy] asked her son [Kevin] to take her car to get the oil changed and he said he would be there around 2 o'clock. [Tracy] and her sister [Beverly] were having lunch with their mother [Shantel]. [Shantel] also invited her son [Pedro] to join them for lunch.
[{('Kevin', 'uncle', 'Pedro'): [('Kevin', 'mother', 'Tracy'), ('Tracy', 'brother', 'Pedro')]}, {('Tracy', 'brother', 'Pedro'): [('Tracy', 'mother', 'Shantel'), ('Shantel', 'son', 'Pedro')]}, {('Tracy', 'mother', 'Shantel'): [('Tracy', 'sister', 'Beverly'), ('Beverly', 'mother', 'Shantel')]}]
['mother', 'sister', 'mother', 'son']