[Margaret] asked her brother [David] if [David]'s son [Troy] was sick. [Joseph] took his grandson [Troy] to the baseball game.
[Margaret] asked her brother [David] if [David]'s son [Troy] was sick. [Joseph] took his grandson [Troy] to the baseball game.
[{('Margaret', 'father', 'Joseph'): [('Margaret', 'brother', 'David'), ('David', 'father', 'Joseph')]}, {('David', 'father', 'Joseph'): [('David', 'son', 'Troy'), ('Troy', 'grandfather', 'Joseph')]}]