Metadata provides information about information.

I find it difficult to understand meta.

She is known as the female leader in this region.

An oriental turtle dove flew into the garden.

This pattern looks like a snake's eye, doesn't it?

Mr. Oginome is my best friend.

This movie feels very meta.

I learned about the properties of mercury in chemistry class.

That species is on the brink of extinction.

The species was exterminated by humans.