CREATE TABLE table_204_278 (id NUMBER, "name of president" CLOB, "picture" CLOB, "life span" CLOB, "year of presidency" CLOB, "place of conference" CLOB)

where was the last conference held ?
SELECT "place of conference" FROM table_204_278 ORDER BY "year of presidency" DESC LIMIT 1
SELECT "place of conference" FROM "table_204_278" ORDER BY "year of presidency" DESC FETCH FIRST 1 ROWS ONLY