Dear Stanbol Users, I have been experimenting with the system and I would appreciate your help with the following problem.
I am trying to implement a custom Graph chain like the example here: https://stanbol.apache.org/docs/trunk/components/enhancer/chains/executionplan.html and here: https://stanbol.apache.org/docs/trunk/components/enhancer/chains/graphchain.html However, when trying to invoke the chain, I get the following exception: *org.apache.jena.riot [line: 6, col: 1 ] Undefined prefix: urn* My execution plan RDF looks like this: *@prefix xsd: <http://www.w3.org/2001/XMLSchema# <http://www.w3.org/2001/XMLSchema#>> .@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns# <http://www.w3.org/1999/02/22-rdf-syntax-ns#>> .@prefix ep: <http://stanbol.apache.org/ontology/enhancer/executionplan# <http://stanbol.apache.org/ontology/enhancer/executionplan#>> .@prefix ehp: <http://stanbol.apache.org/ontology/enhancementproperties# <http://stanbol.apache.org/ontology/enhancementproperties#>> .urn:execPlan rdf:type ep:ExecutionPlan ep:hasExecutionNode urn:node1, urn:node2, urn:node3, urn:node4, urn:node5 ep:chain "demoChain"urn:node1 rdf:type stanbol:ExecutionNode ep:inExecutionPlan urn:execPlan ep:engine langIdurn:node2 rdf:type ep:ExecutionNode ep:inExecutionPlan urn:execPlan ep:dependsOn urn:node1 ep:engine nerurn:node3 rdf:type ep:ExecutionNode ep:inExecutionPlan urn:execPlan ep:dependsOn urn:node1 ep:engine dbpediaLinkingurn:node4 rdf:type ep:ExecutionNode ep:inExecutionPlan urn:execPlan ep:dependsOn urn:node1 ep:engine geonamesLinkingurn:node5 rdf:type ep:ExecutionNode ep:inExecutionPlan urn:execPlan ep:engine zemanta ep:optional "true"^^xsd:boolean* Thank you in advance for your kind help. Best Regards, Michal Krajnansky
