<s>
Distributed	B-Operating_System
Ruby	I-Operating_System
or	O
DRb	O
allows	O
Ruby	B-Language
programs	O
to	O
communicate	O
with	O
each	O
other	O
on	O
the	O
same	O
machine	O
or	O
over	O
a	O
network	O
.	O
</s>
