Table: election_results_1858
Columns: district
incumbent
party
first_elected
result
candidates

Question: Who was the incumbent in the Ohio 10 district?
SQL: SELECT "incumbent" FROM election_results_1858 WHERE "district" = 'Ohio 10'

Question: Who was the incumbent in the Ohio 5 district?
SQL: SELECT "incumbent" FROM election_results_1858 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 election_results_1858 WHERE "result" = 'Retired Republican hold' AND "incumbent" = 'Philemon Bliss'