SILK Framework: Restrict-to SPARQL query

Question

I'm trying to test SILK framework on two simple rdf files. I imported the two files correctly, and created a LinkSpec to generate a simple sameAs link. Prefixes are all correct, however, no link is generated.

Below are the parts of the files that are similar and should be linked:

1.

<gn:Feature rdf:about="http://sws.geonames.org/8286635/">
<rdfs:isDefinedBy rdf:resource="http://sws.geonames.org/8286635/about.rdf"/>
<gn:name>Champ de Mars Tour Eiffel Railway Station</gn:name>
<gn:neighbour rdf:resource="http://sws.geonames.org/6254976/"/>
</gn:Feature>

2.

<gn:Feature rdf:about="http://sws.geonames.org/8286635/">
<rdfs:isDefinedBy rdf:resource="http://sws.geonames.org/8286635/about.rdf"/>
<gn:name>Champ de Mars Tour Eiffel Railway Station</gn:name>
<gn:neighbour rdf:resource="http://sws.geonames.org/6254976/"/>
</gn:Feature>

Below is the LinkSpec file where the problem is supposed to be:

<Interlinks>
 <Interlink id="link3">
  <SourceDataset dataSource="nearby" var="a" typeUri="RDF/XML">
   <RestrictTo>?c <http://www.geonames.org/ontology#name> ?a .</RestrictTo>
  </SourceDataset>
  <TargetDataset dataSource="neighbour" var="b" typeUri="RDF/XML">
   <RestrictTo>?d <http://www.geonames.org/ontology#name> ?b .</RestrictTo>
  </TargetDataset>
  <LinkageRule linkType="owl:sameAs">
   <Compare id="equality1" required="true" weight="1" metric="equality" threshold="0.0" indexing="true">
    <Input id="sourcePath1" path="/gn:name"/>
    <Input id="targetPath1" path="/gn:name"/>
   </Compare>
   <Filter/>
  </LinkageRule>
  <Outputs>
   <Output id="output"/>
  </Outputs>
 </Interlink>
</Interlinks> 

The link is supposed to catch up the similar features based on their names' similarity . Any idea what is going on?

Answer 1

The problem was in the prefix of Geonames:

It was

<Prefix id="gn" namespace="http://www.geonames.org/ontology#"/>

instead of

<Prefix id="gn" namespace="http://www.geonames.org/ontology#/"/>