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_4 (killed INTEGER, injured VARCHAR, year VARCHAR)
  ### Question:
  How many kills have 15 as the injured, with a year prior to 1987?
  ### Answer:
  SELECT SUM(killed) FROM table_name_4 WHERE injured = "15" AND year < 1987