The system of provinces was a part of the ancient political system in Japan.

It's not so much a big problem.

Oh, that's right, I remembered what I ate for dinner yesterday.

Transitive verbs require an object that is directly moved by the subject.

He always acts as if it's someone else's concern.

He passionately discussed the problem of other minds in his philosophy class.

He made a decision taking into account various other circumstances.

He is interested in the culture of foreign countries.

He decided to read another book.

He decided to move to another village.