His heart became empty.

His heart felt like emptiness.

His shoes have completely worn out.

He was lying face-up, looking at the stars.

My father always takes a rough attitude.

This mutetrahedron has a very unusual shape.

This is a model of a mutetrahedron.

Chikage bought a new car.

He shot the pellet with a slingshot.

His feelings are always warm, giving me a sense of security.