Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| District | Incumbent | Party | First elected | Result | Candidates |
| --- | --- | --- | --- | --- | --- |
| Kentucky 1 | Frank Stubblefield | Democratic | 1958.0 | Re-elected | Frank Stubblefield (D) Unopposed |
| Kentucky 2 | William Huston Natcher | Democratic | 1953.0 | Re-elected | William Huston Natcher (D) Unopposed |
| Kentucky 3 | Frank W. Burke | Democratic | 1958.0 | Lost re-election Republican gain | Gene Snyder (R) 50.8% Frank W. Burke (D) 49.2% |
| Kentucky 4 | Frank Chelf | Democratic | 1944.0 | Re-elected | Frank Chelf (D) 52.9% Clyde Middleton (R) 47.1% |
| Kentucky 4 | Brent Spence Redistricted from 5th | Democratic | 1930.0 | Retired Democratic loss | Frank Chelf (D) 52.9% Clyde Middleton (R) 47.1% |
| Kentucky 5 | Eugene Siler Redistricted from 8th | Republican | 1954.0 | Re-elected | Eugene Siler (R) Unopposed |
Question:
What candidates were in the election when a republican was re-elected?
Answer:
Eugene Siler (R) Unopposed