<s>
Ribbon	B-Operating_System
Hero	I-Operating_System
is	O
a	O
video	O
game	O
developed	O
by	O
Microsoft	O
Office	O
Labs	O
.	O
</s>
<s>
The	O
game	O
is	O
available	O
as	O
a	O
free	O
download	O
and	O
serves	O
to	O
educate	O
users	O
of	O
Microsoft	B-Application
Office	I-Application
2007	I-Application
and	O
2010	B-Operating_System
how	O
to	O
use	O
the	O
ribbon	O
interface	O
.	O
</s>
<s>
It	O
is	O
followed	O
by	O
the	O
sequel	O
Ribbon	B-Operating_System
Hero	I-Operating_System
2	I-Operating_System
.	O
</s>
<s>
Ribbon	B-Operating_System
Hero	I-Operating_System
appears	O
on	O
the	O
Ribbon	O
in	O
the	O
supported	O
Microsoft	O
Office	O
programs	O
.	O
</s>
<s>
Ribbon	B-Operating_System
Hero	I-Operating_System
integrates	O
with	O
Facebook	B-Application
,	O
allowing	O
users	O
to	O
compare	O
scores	O
with	O
their	O
friends	O
,	O
and	O
to	O
post	O
achievements	O
on	O
their	O
Facebook	B-Application
Wall	O
.	O
</s>
<s>
It	O
is	O
the	O
first	O
Office	O
Labs	O
project	O
to	O
include	O
Facebook	B-Application
integration	O
.	O
</s>
