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https://issues.apache.org/jira/browse/COMMONSRDF-33?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15533037#comment-15533037
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ASF GitHub Bot commented on COMMONSRDF-33:
------------------------------------------
Github user ajs6f commented on the issue:
https://github.com/apache/incubator-commonsrdf/pull/23
The comment on Jena's `Node_Variable`:
```
"variable" nodes; these are outside the RDF2003 specification, but are
used internally for "placeholder" nodes where blank nodes would be
wrong, most specifically in Query.
```
leads me to believe that we are talking about SPARQL here. There's not
really any other place in Jena I know about that would use such machinery-- the
`find` methods on various structures just use `null` or `Node_ANY` as a
wildcard.
> Jena integration
> ----------------
>
> Key: COMMONSRDF-33
> URL: https://issues.apache.org/jira/browse/COMMONSRDF-33
> Project: Apache Commons RDF
> Issue Type: New Feature
> Reporter: Stian Soiland-Reyes
> Assignee: Stian Soiland-Reyes
> Fix For: 0.3.0
>
>
> Add a new jena/ module with implementations mapping to Jena 3.x
> Based on JENA-1015, https://github.com/afs/commonsrdf-jena and
> https://github.com/stain/incubator-commonsrdf/tree/jena
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