Which is an example of an analogy?

In is to Out as Up is to Down

Life is like a race. The one who keeps running wins the race and the one who stops to catch a breath loses.

Just as a sword is the weapon of a warrior, a pen is the weapon of a writer.

How a doctor diagnoses diseases is like how a detective investigates crimes.

Just as a caterpillar comes out of its cocoon, so we must come out of our comfort zone.

You are as annoying as nails on a chalkboard.

There are some examples of analogys