How many constructors are listed for the XVI BRDC international trophy race
CREATE TABLE table_1140103_6 (constructor VARCHAR, race_name VARCHAR)
SELECT COUNT(constructor) FROM table_1140103_6 WHERE race_name = "XVI BRDC International Trophy"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1140103_6 (constructor VARCHAR, race_name VARCHAR) Question: How many constructors are listed for the XVI BRDC international trophy race [/INST] SELECT COUNT(constructor) FROM table_1140103_6 WHERE race_name = "XVI BRDC International Trophy" </s>