His movement was very fast.

This room is very dirty.

His dream is to become a champion in mixed martial arts.

As his name suggests, Gou is a very sturdy person.

Shingo is my best friend.

All his words were completely unified.

His mansion is truly magnificent.

He said 'thank you'.

He is studying late into the night to learn a new computer language.

A diaeresis is used to change the pronunciation of vowels.