[Dorothy] and her husband [Pedro] celebrated their anniversary last night. They went out to a nice restaurant to celebrate. [Robert] asks his son [Ronald] to get his grandmother [Shantel] a glass of water [Pedro]'s brother, [Robert], brought the car over to help him.
('Dorothy', 'Shantel')
[Dorothy] and her husband [Pedro] celebrated their anniversary last night. They went out to a nice restaurant to celebrate. [Pedro]'s brother, [Robert], brought the car over to help him. [Robert] asks his son [Ronald] to get his grandmother [Shantel] a glass of water
[{('Dorothy', 'mother-in-law', 'Shantel'): [('Dorothy', 'husband', 'Pedro'), ('Pedro', 'mother', 'Shantel')]}, {('Pedro', 'mother', 'Shantel'): [('Pedro', 'brother', 'Robert'), ('Robert', 'mother', 'Shantel')]}, {('Robert', 'mother', 'Shantel'): [('Robert', 'son', 'Ronald'), ('Ronald', 'grandmother', 'Shantel')]}]
['husband', 'brother', 'son', 'grandmother']