Capital
There is a lid covering all the mouths that are too small to feed themselves, forming the capital. All of the small mouths come together and create a place where everyone can support each other.
きょう
みやこ
None
To remember the reading きょう we use the Japanese city, Kyoto, which is spelled きょうと. It was once the capital of Japan! It was soooo full of mouths that came together that it was the capital for a long, long time.