Table:
0
A
B
C
D
E
1
Province of Silla
Administrative district
Pre-1009 province
Post-1009 province
Modern equivalent
2
Hanju
Gyeonggi ( 京畿 )
Gyeonggi
Gyeonggi
Kaesŏng
3
Hanju
Yangju -mok( 揚州牧 )
Gwannae -do
Seohae -do
Hwanghae
4
Hanju
Hwangju -mok( 黃州牧 )
Gwannae -do
Seohae -do
North Hwanghae
5
Hanju
Haeju -mok( 海州牧 )
Gwannae -do
Seohae -do
South Hwanghae
6
Hanju
Gwangju -mok( 廣州牧 )
Gwannae -do
Yanggwang -do
Gyeonggi
7
Hanju
Chungju -mok( 忠州牧 )
Jungwon -do
Yanggwang -do
North Chungcheong
8
Ungju
Cheongju -mok
Jungwon -do
Yanggwang -do
North Chungcheong
9
Ungju
Gongju -mok
Hanam -do
Yanggwang -do
South Chungcheong
10
Jeonju
Jeonju -mok( 全州牧 )
Gangnam -do
Jeolla -do
North Jeolla
11
Muju
Naju -mok
Haeyang -do
Jeolla -do
South Jeolla
12
Muju
Seungju
Haeyang -do
Jeolla -do
South Jeolla
13
Sangju
Sangju -mok
Yeongnam -do
Gyeongsang -do
North Gyeongsang
14
Gangju
Jinju -mok
Sannam -do
Gyeongsang -do
Western South Gyeongsang
15
Yangju
Jinju -mok
Yeongdong -do
Gyeongsang -do
Eastern South Gyeongsang
16
Sakju
—
Sakbang -do
Gyoju -do
Gangwon
17
Myeongju
—
Sakbang -do
Donggye
Gangwon
18
—
—
Paeseo -do
Bukgye
Pyeongan

Questions and formulas:
Question: Which Administrative district has a Pre-1009 province of gwannae -do and a Post-1009 province of seohae -do?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="gwannae -do")*(D1="seohae -do")),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,(C2:C18="gwannae -do")*(D2:D18="seohae -do")),2))
Level: medium
Question: What kind of Modern equivalent that has a Pre-1009 province of sakbang -do, and a Province of Silla of sakju?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(C1="sakbang -do")*(A1="sakju")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,(C2:C18="sakbang -do")*(A2:A18="sakju")),5))
Level: medium
Question: What kind of Modern equivalent has a Post-1009 province of gyeongsang -do, and a Administrative district of jinju -mok, and a Province of Silla of gangju?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="gyeongsang -do")*(B1="jinju -mok")*(A1="gangju")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,(D2:D18="gyeongsang -do")*(B2:B18="jinju -mok")*(A2:A18="gangju")),5))
Level: medium
Question: WHat kind of Province of Silla has a Modern equivalent of pyeongan?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,E1="pyeongan"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,E2:E18="pyeongan"),1))
Level: medium
Question: Which Pre-1009 province has a Post-1009 province of donggye?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="donggye"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,D2:D18="donggye"),3))
Level: medium
Question: WHich Province of Silla has a Modern equivalent of south jeolla, and a Administrative district of seungju?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(E1="south jeolla")*(B1="seungju")),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E18,(E2:E18="south jeolla")*(B2:B18="seungju")),1))
Level: medium