text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_23408094_14 (span_of_years_led INTEGER, tournament_at_which_lead_began VARCHAR)
  ### Question:
  Of the players whose lead began at the australian championships, what was the shortest span of years led?
  ### Answer:
  SELECT MIN(span_of_years_led) FROM table_23408094_14 WHERE tournament_at_which_lead_began = "Australian Championships"