CREATE TABLE table_22498 ("Athlete" CLOB, "Class" CLOB, "Event" CLOB, "Round of 32" CLOB, "Round of 16" CLOB, "Quarterfinals" CLOB, "Semifinals" CLOB, "Final/ Bronze medal match" CLOB)

What is the round of 16 result for Jiske Griffioen Esther Vergeer?
SELECT "Round of 16" FROM table_22498 WHERE "Athlete" = 'Jiske Griffioen Esther Vergeer'
SELECT "Round of 16" FROM "table_22498" WHERE "Athlete" = 'Jiske Griffioen Esther Vergeer'