input: from typing import List
  
  def create_table_of_contents_in_html(database_data: List[str]) -> str:
      """ Create a HTML page that displays a table of contents from the data stored in a database.
      Use HTML, CSS, and JavaScript to create the table and a server-side language such as PHP or Python
      to query the database and retrieve the relevant data. Once you have the data, use JavaScript
      to render the table within the HTML page.
      >>> create_table_of_contents_in_html(['Chapter 1: Introduction', 'Chapter 2: Development', 'Chapter 3: Conclusion'])
      '<!DOCTYPE html><html><head><title>Table of Contents</title></head><body><h1>Table of Contents</h1><ul><li>Chapter 1: Introduction</li><li>Chapter 2: Development</li><li>Chapter 3: Conclusion</li></ul></body></html>'
      """
output:     html_content = '<!DOCTYPE html><html><head><title>Table of Contents</title></head><body><h1>Table of Contents</h1><ul>'
      for item in database_data:
          html_content += f'<li>{item}</li>'
      html_content += '</ul></body></html>'
      return html_content