input: def is_html_table_of_contents_possible(database_connection: str) -> bool:
      """ Determine if it is possible to create an HTML page that displays a table of contents
      from data stored in a given database.
      >>> is_html_table_of_contents_possible('connection_string')
      True
      """
output:     import sqlite3
      try:
          conn = sqlite3.connect(database_connection)
          cursor = conn.cursor()
          cursor.execute("SELECT name FROM sqlite_master WHERE type='table';")
          tables = cursor.fetchall()
          conn.close()
          return len(tables) > 0
      except sqlite3.Error:
          return False