What color are English poems?

A long time ago,

I have a pencil,

Is colorful,

You can paint colorful pictures,

It's beautiful.

But,

Later,

When I grow up,

The pen also turned black and white.

What a pale color.

You are really annoying.

In the past,

I have a pencil,

Is colorful,

You can draw colorful pictures,

It's beautiful.

But,

Later,

When I grow up,

The pen also becomes black and white,

Plain color

What a nuisance.