In a certain code language, 'ROBST' is written as 'QPYLO' and 'POLAR' is written as 'OXILM'. How will 'GUJRT' be written in that code language?

QOGRD

1   2    3    4   5    6   7     8    9  10  11  12  13

 A   B   C    D   E    F   G    H    I    J    K    L   M

 ↓    ↓    ↓    ↓    ↓     ↓   ↓    ↓     ↓   ↓    ↓    ↓    ↓

 Z   Y    X   W   V    U   T    S    R   Q   P    O   N

26  25  24  23  22  21  20  19  18  17  16  15  14

*********************************************

THE LOGIC FOLLOWED HERE IS :

REVERSE THE ALPHABET AND DECREASE IT BY -1

ROBST = TSBOR

T → (-3) → Q

S → (-3) → P

B → (-3) → Y

O → (-3) → L

R → (-3) → O

AND

POLAR = RALOP

R → (-3) → O

A → (-3) → X

L → (-3) → I

O → (-3) → L

P → (-3) → M

SIMILARLY

GUJRT = TRJUG

T → (-3) → Q

R → (-3) → O

J → (-3) → G

U → (-3) → R

G → (-3) → D