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_name_27 (home_team VARCHAR, date VARCHAR, tie_no VARCHAR, away_team VARCHAR)
  ### Question:
  With Sheffield United as the away team and the date, what home team has a tie no of 15?
  ### Answer:
  SELECT home_team FROM table_name_27 WHERE tie_no = "15" AND away_team = "sheffield united" AND date = "sheffield united"