CREATE TABLE table_name_86 (format VARCHAR, region VARCHAR, catalog VARCHAR)

What Format has the Region of Europe and a Catalog of 74321 45851 2?
SELECT format FROM table_name_86 WHERE region = "europe" AND catalog = "74321 45851 2"
SELECT "format" FROM "table_name_86" WHERE "74321 45851 2" = "catalog" AND "europe" = "region"