CREATE TABLE table_203_33 (id NUMBER, "conference" CLOB, "date" CLOB, "place" CLOB, "attendance" NUMBER, "archive of presentations" CLOB)

what was the only conference to have an attendance over 1,000 ?
SELECT "conference" FROM table_203_33 WHERE "attendance" > 1000
SELECT "conference" FROM "table_203_33" WHERE "attendance" > 1000