image source https://www.demachi.ne.jp/gakko/hoken/RGB-0026795-M.html
image source https://www.ac-illust.com/main/detail.php?id=1231170&word=%E6%A3%92%E4%BA%BA%E9%96%93-%E5%9C%9F%E4%B8%8B%E5%BA%A7%E3%81%97%E3%81%A6%E8%AC%9D%E3%82%8B
image source https://technology-illustration.com/07-robot/628-ai-technology.html
