<s>
Shape	B-General_Concept
Expressions	I-General_Concept
(	O
ShEx	B-General_Concept
)	O
is	O
a	O
data	O
modelling	O
language	O
for	O
validating	O
and	O
describing	O
a	O
Resource	O
Description	O
Framework	O
(	O
RDF	O
)	O
.	O
</s>
<s>
The	O
shapes	O
can	O
be	O
defined	O
in	O
a	O
human-friendly	O
compact	O
syntax	O
called	O
ShExC	O
or	O
using	O
any	O
RDF	O
serialization	B-Application
formats	I-Application
like	O
JSON-LD	B-Protocol
or	O
Turtle	O
.	O
</s>
<s>
ShEx	B-General_Concept
expressions	O
can	O
be	O
used	O
both	O
to	O
describe	O
RDF	O
and	O
to	O
automatically	O
check	O
the	O
conformance	O
of	O
RDF	O
data	O
.	O
</s>
<s>
The	O
syntax	O
of	O
ShEx	B-General_Concept
is	O
similar	O
to	O
Turtle	O
and	O
SPARQL	B-Language
while	O
the	O
semantics	O
is	O
inspired	O
by	O
regular	O
expression	O
languages	O
like	O
RelaxNG	B-Language
.	O
</s>
