Thank you so much for one of your most wonderful comment at my post. I am very happy that my deep analysis is very inspiring for you and you understand the answer of each and every question whatever I have tried my best to convey to all of you because you think my language is very easy in every answer.

Secondly I agree with you that I tried my best to explain the definition in my very simple words and I don't understand that why you were worried about last question maybe before participation you don't understand about it but after reading many post now you have cleared your understanding about it that's why now you are not confused regarding it and thanks for wishing me best of luck.