That seams interesting, because this questions seams to be answerable through syntactic analysis alone, no need to consider the semantic of words.
> The surgeon, who is the boy's father, says, "I can't operate on this boy, he's my son!" Who is the surgeon to the boy? Think through the problem logically and without any preconceived notions of other information beyond what is in the prompt. The surgeon is not the boy's mother
>> The surgeon is the boy's mother. [...]