<s>
ScrollKeeper	B-Language
is	O
a	O
document	O
cataloging	B-Library
system	O
.	O
</s>
<s>
ScrollKeeper	B-Language
was	O
used	O
by	O
the	O
GNOME	B-Application
desktop	I-Application
help	O
browser	O
,	O
Yelp	O
,	O
but	O
has	O
since	O
been	O
replaced	O
by	O
Rarian	B-Language
.	O
</s>
<s>
It	O
was	O
also	O
used	O
by	O
the	O
KDE	B-Application
help	O
browser	O
and	O
ScrollServer	O
documentation	O
server	O
.	O
</s>
