﻿* I know nothing about John, but I'll keep this question in mind.
* 
< No, his set is D.
< 
* 
* I don't know the answer to this question, but I'll keep it in mind.
* 
* 
* You had a similar question before:
< Is his set a father?
* 
* I don't know the answer to this question, but I'll keep it in mind.
* 
* 
* You had a similar question before:
< Is his set a number?
* 
* I don't know the answer to this question, but I'll keep it in mind.
* 
* 
* You had a similar question before:
< Is his set a number?
* 
* I don't know the answer to this question, but I'll keep it in mind.
* 
* 
* You had a similar question before:
< Is his set A?
* 
* This question is already answered.
* 
* My answer:
< No, a set is A, B, C, D, E, F or G.
< 
