What grand prixs did Daijiro Hiura win? 
CREATE TABLE table_18303274_1 (grand_prix VARCHAR, race_winner VARCHAR)
SELECT grand_prix FROM table_18303274_1 WHERE race_winner = "Daijiro Hiura"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18303274_1 (grand_prix VARCHAR, race_winner VARCHAR) Question: What grand prixs did Daijiro Hiura win?  [/INST] SELECT grand_prix FROM table_18303274_1 WHERE race_winner = "Daijiro Hiura" </s>