I plan to go to the national museum this weekend.

There is an old incandescent light bulb in my room.

A mute swan was swimming in the park's pond.

A black-necked swan was swimming in the park's pond.

He is receiving treatment for obsessive-compulsive disorder.

White is my favorite color.

On his days off, Kohaku sleeps until noon.

His actions are showing a portent of danger.

Futoshi threw away the garbage.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.