Which round 5 Grand Prix had Daijiro Hiura at pole position? 
CREATE TABLE table_18303274_1 (grand_prix VARCHAR, pole_position VARCHAR, round VARCHAR)
SELECT grand_prix FROM table_18303274_1 WHERE pole_position = "Daijiro Hiura" AND round = 5
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_18303274_1 (grand_prix VARCHAR, pole_position VARCHAR, round VARCHAR) Question: Which round 5 Grand Prix had Daijiro Hiura at pole position?  [/INST] SELECT grand_prix FROM table_18303274_1 WHERE pole_position = "Daijiro Hiura" AND round = 5 </s>