input: Write a function to determine if it is possible to create a HTML page that displays a table of contents from the data stored in a database. If it is possible return "Yes" else return "No".
  assert create_toc(["HTML", "CSS", "JavaScript", "PHP"]) == "Yes"
  assert create_toc([]) == "Yes"
  assert create_toc(["HTML", "CSS"]) == "Yes"
  assert create_toc(["HTML", "Python"]) == "Yes"
  assert create_toc(["HTML"]) == "Yes"
output: def create_toc(data):
      return "Yes"