The first analogy is abstract. The second analogy is concrete. Shakespeare: plays:: Mark Twain: Novels; screen: computer:: face: watch. Sorry, I'm not sure how to prove the concrete/abstract part but I'm sure that I'm right.
My talent is the ability to help others. I help others in any way that I can. When I am able to do this I feel fulfilled, it gives me a sense of importance.
It pretty sure it stands for dimensions.
Hope it helps
Nuclear ☢️ i mean nucleus is the control center of the cell