He is deeply researching the theory of real number fields.

My room is on the upper level.

A day has 24 hours.

My room is on the second floor, and your room is above mine.

Tanaka-san, have you finished the report?

Mr. Ue is my best friend.

I had a picnic at Ueno Park.

I had a picnic at Ueno Park.

In ancient documents, the word '上' was used to refer to gods.

I had a picnic at Ueno Park.