What does "getting a link from a parent frame" means?

Question

<a href="www.google.com" target="_parent" /> Google</a>

Answer 1

O L A try all the values for target attributes in desktop. You'll get it.

Answer 2

I still do not get it

Answer 3

I think this is best explanation of this topic, because he show how each work https://youtu.be/FRr6sRxRXas