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apache
/
jena
/
c52f52f1cdb40271473b2146b1d049d553d3c2cb
/
.
/
jena-arq
/
testing
/
ARQ
/
GroupBy
/
group-12.arq
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PREFIX
:
<
http
:
//example/>
PREFIX rdf
:
<
http
:
//www.w3.org/1999/02/22-rdf-syntax-ns#>
SELECT
*
{
{
?
x rdf
:
type
:
X
.
}
UNION
{
?
x rdf
:
type
:
X
.
FILTER
(?
x
!=
:
x2
)}
OPTIONAL
{
?
x
:
p
?
p
.
}
}
GROUP BY
(
str
(?
p
)
as
?
str
)