For which jockey was the weight in kg 53.5? 
CREATE TABLE table_24915874_1 (jockey VARCHAR, weight__kg_ VARCHAR)
SELECT jockey FROM table_24915874_1 WHERE weight__kg_ = "53.5"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_24915874_1 (jockey VARCHAR, weight__kg_ VARCHAR) Question: For which jockey was the weight in kg 53.5?  [/INST] SELECT jockey FROM table_24915874_1 WHERE weight__kg_ = "53.5" </s>