CREATE TABLE table_18500 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

how many party with candidates being charles edward bennett (d) unopposed
SELECT COUNT("Party") FROM table_18500 WHERE "Candidates" = 'Charles Edward Bennett (D) Unopposed'
SELECT COUNT("Party") FROM "table_18500" WHERE "Candidates" = 'Charles Edward Bennett (D) Unopposed'