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_15926991_1 (weight__kg_ VARCHAR, jockey VARCHAR)
### Question:
What is the entry for weight in kilograms of jockey D. Nikolic?
### Answer:
SELECT weight__kg_ FROM table_15926991_1 WHERE jockey = "D. Nikolic"