<|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
Complete the following HTML template with appropriate tags:
<html>
<head> 
</head>
<body>

</body>
</html><|im_end|>
<|im_start|>assistant
<html>
<head> 
  <title> Title of page </title>
</head>
<body>
  <h1> Header title </h1>
  <p> This is a sample content of a web page. </p>
</body>
</html><|im_end|>
