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_49 (blks INTEGER, stls VARCHAR, rebs VARCHAR)
### Question:
What is the sum of Blks, when Stls is 1, and when Rebs is greater than 8.6?
### Answer:
SELECT SUM(blks) FROM table_name_49 WHERE stls = 1 AND rebs > 8.6