<s>
Rongorongo	B-Language
(	O
;	O
Rapa	O
Nui	O
:	O
)	O
is	O
a	O
system	O
of	O
glyphs	B-Application
discovered	O
in	O
the	O
19th	O
century	O
on	O
Easter	O
Island	O
that	O
appears	O
to	O
be	O
writing	O
or	O
proto-writing	O
.	O
</s>
<s>
Text	O
F	O
of	O
the	O
rongorongo	B-Language
corpus	O
,	O
also	O
known	O
as	O
the	O
(	O
Stephen	O
)	O
Chauvet	O
tablet	O
,	O
is	O
one	O
of	O
two	O
dozen	O
surviving	O
texts	O
.	O
</s>
<s>
There	O
are	O
six	O
lines	O
of	O
glyphs	B-Application
on	O
each	O
side	O
,	O
though	O
two	O
of	O
those	O
on	O
side	O
b	O
are	O
effaced	O
.	O
</s>
<s>
Of	O
the	O
~	O
55	O
glyphs	B-Application
,	O
many	O
are	O
only	O
partly	O
preserved	O
.	O
</s>
