This software has forward compatibility.

This software maintains backward compatibility.

He was diagnosed with congestive heart failure.

That man is my father.

That woman is my mother.

Learning about the existence of Yamatai-koku is very interesting.

His father fell into a persistent vegetative state due to a traffic accident.

Basic oxides react with acids to produce salt and water.

It is important for us to respect cultural diversity and understand each other's differences.

This area is affected by radioactive fallout from past nuclear tests.