[Ashley] watcher her granddaughter [Louise] play the piano at the recital. [Heidi] and her sister [Louise] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while.
('Ashley', 'Heidi')
[Ashley] watcher her granddaughter [Louise] play the piano at the recital. [Heidi] and her sister [Louise] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while.
[{('Ashley', 'granddaughter', 'Heidi'): [('Ashley', 'granddaughter', 'Louise'), ('Louise', 'sister', 'Heidi')]}]
['granddaughter', 'sister']