CREATE TABLE table_204_791 (id NUMBER, "event" CLOB, "winner" CLOB, "second" CLOB, "third" CLOB, "fourth" CLOB)

what is the total number of times chelsea williams was the winner between 2007 and 2010 ?
SELECT COUNT(*) FROM table_204_791 WHERE "winner" = 'chelsea wlliams'
SELECT COUNT(*) FROM "table_204_791" WHERE "winner" = 'chelsea wlliams'