Table:
0
A
B
C
D
E
F
1
District
Incumbent
Party
First elected
Result
Candidates
2
Kentucky 1
Frank Stubblefield
Democratic
1958
Re-elected
Frank Stubblefield (D) Unopposed
3
Kentucky 2
William Huston Natcher
Democratic
1953
Re-elected
William Huston Natcher (D) Unopposed
4
Kentucky 3
Frank W. Burke
Democratic
1958
Lost re-election Republican gain
Gene Snyder (R) 50.8% Frank W. Burke (D) 49.2%
5
Kentucky 4
Frank Chelf
Democratic
1944
Re-elected
Frank Chelf (D) 52.9% Clyde Middleton (R) 47.1%
6
Kentucky 4
Brent Spence Redistricted from 5th
Democratic
1930
Retired Democratic loss
Frank Chelf (D) 52.9% Clyde Middleton (R) 47.1%
7
Kentucky 5
Eugene Siler Redistricted from 8th
Republican
1954
Re-elected
Eugene Siler (R) Unopposed

Questions and formulas:
Question: What candidates were in the election when a republican was re-elected?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,(E1="Re-elected")*(C1="Republican")),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,(E2:E7="Re-elected")*(C2:C7="Republican")),6))
Level: medium
Question: What district is incumbent frank chelf from?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="Frank Chelf"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F7,B2:B7="Frank Chelf"),1))
Level: medium