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apache
/
jena
/
cea9a99a5368077c42077f6438aa7687f8496202
/
.
/
jena-arq
/
testing
/
DAWG-Final
/
optional
/
q-opt-2.rq
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PREFIX foaf
:
<
http
:
//xmlns.com/foaf/0.1/>
SELECT
?
mbox
?
name
?
nick
{
?
x foaf
:
mbox
?
mbox
.
OPTIONAL
{
?
x foaf
:
name
?
name
}
.
OPTIONAL
{
?
x foaf
:
nick
?
nick
}
.
}