CREATE TABLE table_name_21 (location VARCHAR, round VARCHAR, method VARCHAR)

Where was the match that lasted less than 3 rounds and was won by submission (triangle choke)?
SELECT location FROM table_name_21 WHERE round < 3 AND method = "submission (triangle choke)"
SELECT "location" FROM "table_name_21" WHERE "method" = "submission (triangle choke)" AND "round" < 3