He died from overwork.

The history of the German Empire is very interesting.

I learned how to calculate definite integrals in math class.

He decided to change his character.

If you rephrase that complex theory in simpler terms, it's just common sense.

This apple contains poison.

Hypervitaminosis occurs when the intake of vitamins is too high.

Osamu is sleeping and snoring.

Could you understand that point?

This software is a pirated version, so using it is illegal.