Table:
0
A
B
C
D
E
1
Bow number
Ship name
Launched
Commissioned
Service
2
PS-18
BRP Datu Tupas
14 November 1943
November 1975
Philippine Navy Patrol Force
3
PS-19
BRP Miguel Malvar
1 March 1944
November 1975
Philippine Navy Patrol Force
4
PS-20
BRP Magat Salamat
19 March 1944
November 1975
Philippine Navy Patrol Force
5
PS-22
BRP Sultan Kudarat
18 May 1943
November 1975
Philippine Navy Patrol Force
6
PS-23
BRP Datu Marikudo
18 March 1944
5 April 1976
Philippine Navy Patrol Force
7
PS-28
BRP Cebu
10 November 1943
July 1948
Philippine Navy Patrol Force
8
PS-29
BRP Negros Occidental
24 February 1944
July 1948
Philippine Navy Patrol Force
9
PS-30
RPS Leyte
20 June 1944
July 1948
Philippine Navy Patrol Force
10
PS-31
BRP Pangasinan
24 April 1943
July 1948
Philippine Navy Patrol Force
11
PS-32
BRP Iloilo
3 August 1943
July 1948
Philippine Navy Patrol Force
12
PS-33
RPS Samar
20 November 1943
24 May 1948
Philippine Navy Patrol Force

Questions and formulas:
Question: When did the ship commissioned in November 1975 with a bow number of ps-18 launch?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="november 1975")*(A1="ps-18")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,(D2:D12="november 1975")*(A2:A12="ps-18")),3))
Level: medium
Question: When did the ship that was commissioned July 1948 with a bow number of ps-31 launch?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(D1="july 1948")*(A1="ps-31")),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,(D2:D12="july 1948")*(A2:A12="ps-31")),3))
Level: medium
Question: When was the ship BRP Miguel Malvar commissioned?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,B1="brp miguel malvar"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E12,B2:B12="brp miguel malvar"),4))
Level: medium