CREATE TABLE table_34771 ("Event" CLOB, "Gold" CLOB, "Silver" CLOB, "Bronze" CLOB, "4th place" CLOB)

Who won the gold when Jules van Dyk Belgium won bronze?
SELECT "Gold" FROM table_34771 WHERE "Bronze" = 'jules van dyk belgium'
SELECT "Gold" FROM "table_34771" WHERE "Bronze" = 'jules van dyk belgium'