import openai

def generate_product_review(product_name, product_notes):
    openai.api_key = 'YOUR_OPENAI_API_KEY'  

    introduction = f"Introducing the {product_name} – A Game Changer in the Tech World!\n\n"
    heading = f"<h1>{product_name} Review</h1>\n\n"
    
    # HTML formatting for product notes
    product_notes_html = "\n".join([f"<li>{note}</li>" for note in product_notes.split('\n') if note.strip()])
    product_notes_section = f"<h2>Product Notes:</h2>\n<ul>\n{product_notes_html}\n</ul>\n\n"

    prompt = f"Generate a captivating review for the {product_name}:\n\nReview:"
    prompt = introduction + heading + product_notes_section + prompt

    response = openai.Completion.create(
        engine="text-davinci-003",  # We can use other engines like gpt-3.5-turbo or gpt-4
        prompt=prompt,
        max_tokens=800  # Adjust the length as needed
    )

    review = response.choices[0].text.strip()
    
    # HTML formatting
    html_content = f"""
    &lt;html&gt;
    &lt;head&gt;
        &lt;title&gt;{product_name} Review&lt;/title&gt;
    &lt;/head&gt;
    &lt;body&gt;
        {heading}
        <p>{introduction}</p>
        <p>{review}</p>
    &lt;/body&gt;
    &lt;/html&gt;
    """
    
    return html_content