CREATE TABLE table_name_47 (race VARCHAR2, category VARCHAR2, date VARCHAR2)

What is the Race on July 30, 1950 with a Formula 2 Fia, non-championship?
SELECT race FROM table_name_47 WHERE category = "formula 2 fia, non-championship" AND date = "july 30, 1950"
SELECT "race" FROM "table_name_47" WHERE "category" = "formula 2 fia, non-championship" AND "date" = "july 30, 1950"