CREATE TABLE "ohio" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);

Question: Who was the incumbent in the Ohio 10 district?
SQL: SELECT "incumbent" FROM "ohio" WHERE "district"='Ohio 10';

Question: Who was the incumbent in the Ohio 5 district?
SQL: SELECT "incumbent" FROM "ohio" WHERE "district"='Ohio 5';

Question: Who were the candidates where the result was retired Republican hold and the incumbent was Philemon Bliss?
SQL: SELECT "candidates" FROM "ohio" WHERE "result"='Retired Republican hold' AND "incumbent"='Philemon Bliss';