<tool id="sparql" name="SPARQL" version="0.1">
  <description>Runner (Jena ARQ)</description>
  <command interpreter="python">
    sparql.py "$query" $input_file $output_file
  </command>
  <inputs>
    <param name="input_file" type="data" label="Input RDF Data"/>
    <param name="query" type="text" area="True" size="10x50" label="SPARQL Query" value="SELECT * WHERE { ?s ?p ?o } LIMIT 10">
      <sanitizer sanitize="False"/>
    </param>
  </inputs>
  <outputs>
    <data name="output_file" format="tabular" label="${tool.name} on ${on_string}"/>
  </outputs>
  <help>

**What it does**

This tool executes SPARQL query on a RDF file with Jena ARQ.

To setup Jena ARQ, please refer README.txt in this tool's directory.

**Input RDF DATA**

Input RDF data has to be N-Triples format.

To input multiple RDF files, concatenate tails to heads and merge them into one file.

**SPARQL Tools**

Example:

SELECT * WHERE { ?s ?p ?o } LIMIT 10

  </help>
</tool>