A part alternation mark is used in these lyrics.

He was deeply immersed in contemplation.

Knock-knock, someone is knocking on the door.

We respect Japanese culture.

We are going on a trip tomorrow.

When I first met her, I introduced myself saying, 'I am Japanese.'

We prioritize customer satisfaction above all else.

We will do our best to solve this problem.

My personal thought is that everyone should be treated equally.

He values his private life.