[Katherine]'s son [Bret] was terribly ill. [Allan] asked [Katherine] if [Bret] was going to die, and [Katherine] said no. [Allan] was relieved, as was [Allan]'s sister, [Loretta].
('Loretta', 'Bret')
[Katherine]'s son [Bret] was terribly ill. [Allan] asked [Katherine] if [Bret] was going to die, and [Katherine] said no. [Allan] was relieved, as was [Allan]'s sister, [Loretta].
[{('Loretta', 'brother', 'Bret'): [('Loretta', 'brother', 'Allan'), ('Allan', 'brother', 'Bret')]}, {('Allan', 'brother', 'Bret'): [('Allan', 'mother', 'Katherine'), ('Katherine', 'son', 'Bret')]}]