I'm so, so sorry, little buddy. That was not my intention, to make you cry. I know you try very hard, but to answer a question like this is not something you've learned to do yet. And that's OK. To answer a question honestly with understanding is what it's all about, so that you can truly help the person asking the question. They may be as desperate to know the answer to their questions as you are to know the answer to your questions. Anyway, I'll be more careful not to upset you again. If it helps, I did think a lot about whether I should hide your answer, because I could see you had tried; but I also had to think about the person asking the question and whether your answer would help or confuse them.