CREATE TABLE table_46597 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

Who was the opponent in UFC 19?
SELECT "Opponent" FROM table_46597 WHERE "Event" = 'ufc 19'
SELECT "Opponent" FROM "table_46597" WHERE "Event" = 'ufc 19'