Letter : W R A P G B M U S E F T N D
Digit/Symbol Code:  $ 8  ! 2 7 # 9 @ ? 5 β 4 * 6
Conditions:
(i)If the middle letter is a vowel, the codes for the first and fourth letters are to be interchanged.
(ii) If the first two letters are consonants, the first letter is to be coded, no code may be given to the second letter and the remaining three letters are to be coded.
(iii) If the first letter is a vowel and the last letter is a consonant both are to be coded as the code for the Consonant.

PEFTG?