input: Write a function to determine whether it is possible to create an HTML page that displays a table of contents from data stored in a database. If it is possible, return 'Yes', otherwise return 'No'. If the input is empty, return 'Yes'.
  def create_table_of_contents(database_data):
      if not database_data:
          return 'Yes'
      return 'Yes'
  assert create_table_of_contents('')== 'Yes'
  assert create_table_of_contents('sample_data')== 'Yes'
output: def create_table_of_contents(database_data):
      if not database_data:
          return 'Yes'
      return 'Yes'