What is "koto" used for?

Question

I know "koto" means thing, but I've seen it used like this in my Self-Study Japanese book: *Nihon no koto ga yoku wakarimasu ka.* and *Chiimu no koto o kangaete imashita.* Does this mean **Japan's thing** or **Team's thing?** I don't understand. Also I can't use Kanji, just Hiragana.

Answer 1

It would literally be "Japan's" things, but in this case it can be thought of as "about."

I understand a lot of things about Japan.

I thought about the team.