<s>
The	O
Sigma	B-Algorithm
APO	I-Algorithm
150-500mm	I-Algorithm
F5-6.3	I-Algorithm
DG	I-Algorithm
OS	I-Algorithm
HSM	I-Algorithm
lens	I-Algorithm
is	O
a	O
super-telephoto	O
lens	O
produced	O
by	O
Sigma	O
Corporation	O
.	O
</s>
