[Rose] went to her brother [Mark]'s birthday party [Peter] took his sister [Rose] out to lunch after learning that she got accepted into her first choice for university. [George] got his son, [Peter], a car for his birthday. [George]'s grandmother, [Sandra], felt happy that [George] graciously accepted the sweater she made for him.
[Peter] took his sister [Rose] out to lunch after learning that she got accepted into her first choice for university. [George] got his son, [Peter], a car for his birthday. [George]'s grandmother, [Sandra], felt happy that [George] graciously accepted the sweater she made for him.
[{('Rose', 'mother', 'Sandra'): [('Rose', 'brother', 'Peter'), ('Peter', 'mother', 'Sandra')]}, {('Peter', 'mother', 'Sandra'): [('Peter', 'son', 'George'), ('George', 'grandmother', 'Sandra')]}]