[David] took her daughter [Marie] to school during the cold winter morning. [Michael] went golfing with his grandfather [James] and his mother [David].
('Marie', 'James')
[David] took her daughter [Marie] to school during the cold winter morning. [Michael] went golfing with his grandfather [James] and his mother [David].
[{('Marie', 'grandfather', 'James'): [('Marie', 'brother', 'Michael'), ('Michael', 'grandfather', 'James')]}, {('Marie', 'brother', 'Michael'): [('Marie', 'mother', 'David'), ('David', 'son', 'Michael')]}]
['mother', 'son', 'grandfather']