<s>
XCES	B-General_Concept
is	O
an	O
XML	B-Protocol
based	O
standard	O
to	O
encode	O
text	O
corpora	O
,	O
which	O
are	O
used	O
by	O
linguists	O
and	O
natural	O
language	O
researchers	O
.	O
</s>
<s>
XCES	B-General_Concept
is	O
highly	O
based	O
on	O
the	O
previous	O
EAGLES	O
Corpus	O
Encoding	O
Standard	O
(	O
CES	O
)	O
but	O
uses	O
XML	B-Protocol
as	O
the	O
markup	O
language	O
.	O
</s>
