[PAD]
L
A
G
V
S
E
R
T
I
D
P
K
Q
N
F
Y
M
H
W
C
X
B
U
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.
-
[MASK]
[gMASK]
[sMASK]
[eod]
[sop]
[eop]
[SEP]
[HC]
[LC]
[HUMAN]
<cdr1>
</cdr1>
<cdr2>
</cdr2>
<cdr3>
</cdr3>