CREATE TABLE table_204_395 (id NUMBER, "year" NUMBER, "competition" CLOB, "venue" CLOB, "position" CLOB, "notes" CLOB)

what was the venue before dakar , senegal ?
SELECT "venue" FROM table_204_395 WHERE id = (SELECT id FROM table_204_395 WHERE "venue" = 'dakar, senegal') - 1
SELECT "venue" FROM "table_204_395" WHERE "id" = (SELECT "id" FROM "table_204_395" WHERE "venue" = 'dakar, senegal') - 1