His grandfather died of senility.

The room was lit only by a dim light.

When I opened the window, the wind breezed into the room.

Usuba bocho is the ideal knife for thinly slicing vegetables.

Something is moving in the darkness.

This paper is very thin.

He found an old millstone.

His shirt is very thin.

Sirius is the brightest star in the night sky.

Achilles was a hero in Greek mythology, and his heel was his only weakness.