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

Question: When was incumbent John Thomas Wilson first elected? 
SQL: SELECT "first_elected" FROM "ohio" WHERE "incumbent"='John Thomas Wilson';

Question: Who were the candidates in the election where John Beatty was the incumbent? 
SQL: SELECT "candidates" FROM "ohio" WHERE "incumbent"='John Beatty';

Question: Who was the incumbent in the Ohio 16 district? 
SQL: SELECT "incumbent" FROM "ohio" WHERE "district"='Ohio 16';