--- a/sparql.xml	Mon Sep 30 23:21:54 2013 -0400
+++ b/sparql.xml	Mon Sep 30 23:22:23 2013 -0400
@@ -5,7 +5,7 @@
   </command>
   <inputs>
     <param name="input_file" type="data" label="Input RDF Data"/>
-    <param name="query" type="text" area="True" size="10x50" label="SPARQL Query">
+    <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>
@@ -13,6 +13,24 @@
     <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>