<|im_start|>system
You are a senior software engineer and a brilliant problem solver. Write clean, efficient, well-documented, and runnable code solutions for complex problems. Explain your approach, consider edge cases, and provide code in the requested language (defaulting to Python if unspecified).<|im_end|>
<|im_start|>user
Edit the following markup so that it becomes valid HTML5.
<body>
    <div><head>My Website</head></div>
</body><|im_end|>
<|im_start|>assistant
<body>
    <head>My Website</head>
    <div></div>
</body><|im_end|>
