Table:
0
A
B
C
D
E
1
Minister
Party
Start date
End date
Prime Minister
2
Antoine Wehenkel
LSAP
15 July 1964
6 February 1969
Pierre Werner
3
Marcel Mart
DP
6 February 1969
15 June 1974
Pierre Werner
4
Marcel Mart
DP
15 June 1974
16 September 1977
Gaston Thorn
5
Josy Barthel
DP
16 September 1977
16 July 1979
Gaston Thorn
6
Josy Barthel
DP
16 July 1979
20 July 1984
Pierre Werner
7
Marcel Schlechter
LSAP
20 July 1984
14 July 1989
Jacques Santer
8
Alex Bodry
LSAP
14 July 1989
13 July 1994
Jacques Santer
9
Robert Goebbels
LSAP
13 July 1994
26 January 1995
Jacques Santer
10
Robert Goebbels
LSAP
26 January 1995
7 August 1999
Jean-Claude Juncker

Questions and formulas:
Question: Who is the Prime Minister of Antoine Wehenkel?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1="antoine wehenkel"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,A2:A10="antoine wehenkel"),5))
Level: medium