CREATE TABLE table_204_109 (id NUMBER, "district" CLOB, "incumbent" CLOB, "party" CLOB, "first\ elected" CLOB, "result" CLOB, "candidates" CLOB)

how many candidates were there for virginia 17 district ?
SELECT "candidates" FROM table_204_109 WHERE "district" = 'virginia 17'
SELECT "candidates" FROM "table_204_109" WHERE "district" = 'virginia 17'