Noise
Disturbance
O
O
N
O
N
I
I
B
B
G
O
I
G
N
G
G
B
N
I
G
B
O
I
B
Size:
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Start
O
History
Start
O
O
N
O
N
I
I
B
B
G
O
I
G
N
G
G
B
N
I
G
B
O
I
B
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