model.addStatement(null,bnodeEval, model.createURI(SIOC.postedBy),person.getResource());
model.addStatement(null,bnodeEval, model.createURI(S3B_SSCF.value),model.createDatatypeLiteral(value.toString(),XSD._string));
model.addStatement(null,this.resource,model.createURI(S3B_SSCF.isEvaluatedWith),bnodeEval);
} else {
model.removeStatements(null,eval.asBlankNode(), model.createURI(S3B_SSCF.value), null);
//XXX: not sure if it will be working...
model.addStatement(null,eval.asBlankNode(),model.createURI(S3B_SSCF.value),model.createDatatypeLiteral(value.toString(),XSD._string));
}