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_86 (silver VARCHAR, notes VARCHAR)
### Question:
What is Silver, when Notes is "6.24km, 23controls"?
### Answer:
SELECT silver FROM table_name_86 WHERE notes = "6.24km, 23controls"