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_87 (silver INTEGER, total VARCHAR, bronze VARCHAR, nation VARCHAR)
  ### Question:
  What is the average amount of silver medals Montenegro, who has less than 15 bronze and more than 11 total medals, has?
  ### Answer:
  SELECT AVG(silver) FROM table_name_87 WHERE bronze < 15 AND nation = "montenegro" AND total > 11