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_1140113_5 (constructor VARCHAR, race_name VARCHAR)
### Question:
How many constructors won the III Redex Trophy?
### Answer:
SELECT COUNT(constructor) FROM table_1140113_5 WHERE race_name = "III RedeX Trophy"