<eps> 0
sil 1
laughter 2
noise 3
oov 4
AA 5
AE 6
AH 7
AO 8
AW 9
AY 10
B 11
CH 12
D 13
DH 14
EH 15
ER 16
EY 17
F 18
G 19
HH 20
IH 21
IY 22
JH 23
K 24
L 25
M 26
N 27
NG 28
OW 29
OY 30
P 31
R 32
S 33
SH 34
T 35
TH 36
UH 37
UW 38
V 39
W 40
Y 41
Z 42
ZH 43
#0 44
#1 45
#2 46
#3 47
#4 48
#5 49
#6 50
#7 51
#8 52
#9 53
