<s>
Rarian	B-Language
is	O
a	O
document	O
cataloging	B-Library
system	O
(	O
formerly	O
known	O
as	O
Spoon	O
)	O
.	O
</s>
<s>
Rarian	B-Language
is	O
used	O
by	O
the	O
GNOME	B-Application
desktop	I-Application
help	O
browser	O
,	O
Yelp	B-Language
.	O
</s>
<s>
It	O
has	O
replaced	O
ScrollKeeper	B-Language
,	O
as	O
originally	O
designed	O
.	O
</s>
<s>
It	O
provides	O
an	O
API	B-Application
.	O
</s>
