S40 13.ABC E175 33.DEF
A= number of letters in the type of building +2
B= number of letters in the third word of the organisation who placed the plaque-Answer D
C= number of letters in the name of the brand-1
D= add all odd numbers together/2
E= number of letters in the surname of the first operator-number of letters in the type of product manufactured here
F= number of letters in the name of the symbol on the fifth line/3
