try {
String rawSubject = nodePreprocessor.apply(row3.getSubject());
String rawPredicate = nodePreprocessor.apply(row3.getPredicate());
String rawObject = nodePreprocessor.apply(row3.getObject());
Node_URI subject=(Node_URI) nodeParser.get(rawSubject);
Node_URI predicate=(Node_URI) nodeParser.get(rawPredicate);
Node object=nodeParser.get(rawObject);
Triple realTriple=new Triple(subject,predicate,object);
writableTriple = new WritableTriple(realTriple);
} catch(Throwable e) {