CREATE TABLE table_name_21 (surface VARCHAR, support_category VARCHAR, round VARCHAR)

Which Surface has a Support Category of jwrc/pwrc, and a Round larger than 5?
SELECT surface FROM table_name_21 WHERE support_category = "jwrc/pwrc" AND round > 5
SELECT "surface" FROM "table_name_21" WHERE "jwrc/pwrc" = "support_category" AND "round" > 5