His private residence is on top of the mountain.

Tadashi will take an English exam this weekend.

The protagonist of this novel is a character who unlocks the lock of the key.

Japan exports a large amount of electronic products.

Understanding the exposed form is important in learning Japanese.

There are many arguments arising from diverse opinions about that issue, and no conclusion has been reached.

The axiom of choice is one of the basic axioms of mathematics.

This region is known for the production of high-quality wine.

The ejecta from the volcano plays an important role in shaping the terrain.

A large amount of smoke and ash was spewing from the volcano.