<s>
Daikon	B-Application
is	O
a	O
computer	B-Application
program	I-Application
that	O
detects	O
likely	O
invariants	B-Application
of	O
programs	O
.	O
</s>
<s>
An	O
invariant	B-Application
is	O
a	O
condition	O
that	O
always	O
holds	O
true	O
at	O
certain	O
points	O
in	O
the	O
program	O
.	O
</s>
<s>
Daikon	B-Application
can	O
detect	O
properties	O
in	O
C	B-Language
,	O
C++	B-Language
,	O
Java	B-Language
,	O
Perl	B-Language
,	O
and	O
IOA	O
programs	O
,	O
as	O
well	O
as	O
spreadsheet	B-Application
files	O
or	O
other	O
data	O
sources	O
.	O
</s>
<s>
Daikon	B-Application
is	O
easy	O
to	O
extend	O
and	O
is	O
free	B-Application
software	I-Application
.	O
</s>
