He was born as an illegitimate child and experienced many difficulties.

My grandfather used to till his privately-owned rice field.

He holds a personal grudge against me.

Using the private railway makes commuting very convenient.

I'm troubled by his unproductive attitude.

Japan's gross national product is the third highest in the world.

Japan's gross domestic product is an important indicator of the health of the economy.

Japan's net national product is an important indicator of the health of the economy.

There is a proverb that says 'even a dog wouldn't eat a marital dispute,' so we should not interfere in their problems.

I'm sorry, but I don't speak Japanese.