Table:
0
A
B
C
D
E
1
Fire Class
Geometric Symbol
Intended Use
Mnemonic
compatibility
2
A
Green Triangle
Ordinary solid combustibles
A for Ash
Compatible
3
B
Red Square
Flammable liquids and gases
B for Barrel
Compatible
4
C
Blue Circle
Energized electrical equipment
C for Current
Compatible
5
D
Yellow Decagon (Star)
Combustible metals
D for Dynamite
Not compatible
6
K
Black Hexagon
Oils and fats
K for "Kitchen"
Not compatible

Questions and formulas:
Question: What is the compatibility for the Mnemonic d for "dynamite"?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,D1="d for dynamite"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E6,D2:D6="d for dynamite"),5))
Level: medium