Table:
0
A
B
C
D
E
F
1
Shipyard
Name
Laid down
Launched
Commissioned
Fleet
2
SEVMASH, Severodvinsk
NA
30 January 1974
11 February 1976
30 December 1976
Northern
3
SEVMASH, Severodvinsk
NA
7 May 1974
25 May 1976
31 October 1976
Pacific
4
SEVMASH, Severodvinsk
NA
19 July 1974
29 July 1976
5 February 1977
Pacific
5
SEVMASH, Severodvinsk
NA
16 October 1974
16 August 1976
30 December 1976
Pacific
6
SEVMASH, Severodvinsk
NA
6 March 1975
27 January 1977
30 September 1977
Pacific
7
SEVMASH, Severodvinsk
NA
9 June 1975
4 April 1977
27 December 1977
Northern
8
SEVMASH, Severodvinsk
Borisoglebsk
23 September 1975
13 August 1977
30 December 1977
Northern
9
SEVMASH, Severodvinsk
Zelenograd
29 December 1975
26 January 1978
30 November 1978
Pacific
10
SEVMASH, Severodvinsk
Petropavlovsk-Kamchatskiy
19 August 1976
13 January 1979
28 September 1979
Pacific
11
SEVMASH, Severodvinsk
Podolsk
19 February 1977
30 April 1979
27 November 1979
Pacific
12
SEVMASH, Severodvinsk
NA
27 December 1977
8 January 1980
25 September 1980
Pacific
13
SEVMASH, Severodvinsk
Svyatoy Georgiy Pobedonosets
24 August 1978
20 June 1980
15 December 1980
Pacific
14
SEVMASH, Severodvinsk
Orenburg
9 April 1979
15 April 1981
5 November 1981
Northern
15
SEVMASH, Severodvinsk
Ryazan
31 January 1980
19 January 1982
17 September 1982
Pacific

Questions and formulas:
Question: Which fleet was named Orenburg?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="orenburg"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F15,B2:B15="orenburg"),6))
Level: medium