n/ô/n/ữ/g/n/g ⇨

(a)  

n/c/à/á/b/i ⇨

(a)  

t/s/m/é/ấ/S ⇨

(a)  

ừ/m/ụ/t/c ⇨

(a)  

ỉ/Đ/c/ị/a/h ⇨

(a)  

N/à/h/h/g/a/o/n ⇨

(a)  

T/ờ/h/i/ế/t/t/i ⇨

(a)  

n/u/r/c/ế/y/ự/t/T ⇨

(a)  

i/K/ả/g/i/g/a/h/n ⇨

(a)  

u/ố/ầ/i/u/C/t/n ⇨

(a)  

ơ/i/C/h/ờ/i/b ⇨

(a)  

o/n/P/h/p/ú/g/h ⇨

(a)  

h/c/u/p/h/K/ắ/c ⇨

(a)  

ở/g/g/ư/T/n/n/ợ/t/ư ⇨

(a)  

p/B/o/á/ã/t ⇨

(a)  

ô/g/n/Đ/n/c/ậ/c ⇨

(a)  

ễ/n/í/h/p/i/M ⇨

(a)  

t/S/h/i/ử ⇨

(a)  

ă/n/Đ/ă/S/m ⇨

(a)