The stored information includes some obvious items, like education and hobbies, and some not-so-obvious ones, like whether a person is the oldestchild.
存储的信息包括一些明显的信息，比如教育和爱好，也有一些不那么明显的信息，比如一个人是不是老大。
2
I: Are you the oldestchild in your family?
I：你是家中最大的孩子吗？
3
No one can recognise the old guy at once except the oldestchild.