<s>
Accent	B-Language
R	I-Language
(	O
the	O
"	O
R	O
"	O
is	O
for	O
Relational	O
:	O
Relational	B-Application
database	I-Application
,	O
Relational	B-Architecture
model	I-Architecture
)	O
,	O
is	O
a	O
fourth-generation	B-Language
programming	I-Language
language	I-Language
that	O
was	O
first	O
installed	O
in	O
1980	O
.	O
</s>
<s>
Accent	B-Language
R	I-Language
goes	O
beyond	O
use	O
of	O
RMS	B-Application
:	O
Oracle	B-Application
and	O
Sybase	B-Application
are	O
among	O
the	O
database	O
systems	O
supported	O
.	O
</s>
<s>
Accent	B-Language
R	I-Language
is	O
also	O
supported	O
on	O
Linux	B-Application
.	O
</s>
<s>
Their	O
DPL	O
(	O
Data	O
Processing	O
Language	O
)	O
,	O
written	O
for	O
the	O
DECsystem-10	B-Device
and	O
DECSYSTEM-20	B-Device
,	O
competed	O
with	O
Software	O
House	O
's	O
System	O
1022	O
.	O
</s>
<s>
By	O
1988	O
NIS	O
worked	O
out	O
and	O
announced	O
a	O
cooperative	O
marketing	O
agreement	O
with	O
Sybase	B-Application
.	O
</s>
