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_28181401_4 (attendance INTEGER, round VARCHAR)
  ### Question:
  When semi final (2nd leg) is the round what is the highest attendance?
  ### Answer:
  SELECT MAX(attendance) FROM table_28181401_4 WHERE round = "Semi Final (2nd leg)"