Sora提示词："The vast, rolling prair

"The vast, rolling prairie of the Great Plains, tall grasses swaying gently under the breeze, wide-open skies with fluffy clouds drifting by. 根据前面文字描述生成9:16竖屏视频，视频不要出现文字或人物，视频风格以治愈为主，配上简单的背景声音，可以是风声、海浪或鸟叫等自然声音或舒缓温暖的纯音乐。"