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_24 (height__ft_ INTEGER, floors VARCHAR, city VARCHAR, height__m_ VARCHAR)
  ### Question:
  What is the smallest height (ft) of a building in Frankfurt with a height (m) of 257 and less than 55 floors?
  ### Answer:
  SELECT MIN(height__ft_) FROM table_name_24 WHERE city = "frankfurt" AND height__m_ = 257 AND floors < 55