<s>
SDB	B-Application
is	O
a	O
symbolic	B-Application
debugger	I-Application
for	O
C	B-Language
programs	I-Language
.	O
</s>
<s>
SDB	B-Application
was	O
first	O
introduced	O
in	O
UNIX/32V	B-Operating_System
.	O
</s>
<s>
SDB	B-Application
is	O
a	O
minimal	O
debugger	B-Application
,	O
that	O
can	O
only	O
debug	O
C	B-Language
programs	I-Language
compiled	O
in	O
COFF	O
format	O
with	O
debug	O
options	O
.	O
</s>
