<s>
RGtk2	B-Language
is	O
a	O
set	O
of	O
R	B-Language
wrappers	O
for	O
the	O
GTK+	B-Application
graphical	B-Application
user	I-Application
interface	I-Application
library	B-Library
.	O
</s>
<s>
RGtk2	B-Language
is	O
free	B-Application
software	I-Application
and	O
licensed	O
under	O
the	O
GPL	B-License
.	O
</s>
<s>
RGtk2	B-Language
has	O
been	O
used	O
in	O
a	O
number	O
of	O
notable	O
applications	O
,	O
some	O
examples	O
:	O
</s>
