Table:
0
A
B
C
D
E
F
1
President
Vice
Romanized (Hangul)
Took office
Left office
Political party
2
Syngman Rhee
1
Yi Si-yeong (이시영)
24 July 1948
9 May 1951 (Resign)
Korea Democratic Party
3
Syngman Rhee
2
Kim Seong-su (김성수)
17 May 1951
29 May 1952 (Resign)
Korea Democratic Party
4
Syngman Rhee
3
Hahm Tae-young (함태영)
15 June 1952
14 August 1956
Independent
5
Syngman Rhee
4
Chang Myon (장면)
15 August 1956
23 April 1960 (Resign)
Democratic Party
6
Syngman Rhee
5
Yun Bo-seon (윤보선)
23 April 1960
26 April 1960
Democratic Party
7
Yun Bo-seon
6
Heo Jeong (윤보선)
13 August 1960
16 August 1960
Democratic Party
8
Yun Bo-seon
7
Song Yo-chan (송요찬)
16 August 1960
19 August 1960
Military

Questions and formulas:
Question: When did chang myon (장면) leave office?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,C1="chang myon (장면)"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F8,C2:C8="chang myon (장면)"),5))
Level: medium
Question: When did the vice president with a vice over 6 take office?
Formula: LET(query1,SUMMARIZE(D1,SUMX(B1)),FILTER(query1,CHOOSECOLS(query1,2)>6))
Formula2: LET(query1,SUMMARIZE(D2:D8,SUMX(B2:B8)),FILTER(query1,CHOOSECOLS(query1,2)>6))
Level: hard