if (m_isLastErr)
                        {
                                    return;
                        }

                        /*
                         * Go over all description elements and extract relevance.
                         * When c:subject is found (the id of
                         * the element whose relevance is described here) -
                         * set the relevance of the entity
                         */
                        for (i = 0; i < desc.getNumChildren(); i++)
                        {
                                    elem = desc.getChild(i);

                                    if (elem.getTag().equals("c:subject"))
                                    {
                                       /*
                                        * subject - the entity whose instance
                                         * is being processed here
                                           */
                                                attr = elem.getAttribute("rdf:resource");
                                                if (attr == null)
                                                {
                                                            err("Failed to parse RDF: c:subject element missing rdf:resource attribute");
                                                            return;
                                                }
                                                
                                                ielem = m_elementsHash.get(attr.getValue());
                                                if (ielem == null)
                                                {
                                                            err("Failed to parse RDF: RelevanceInfo refers to id " +
                                                                                    attr.getValue() + " - not found in hash");
                                                            return;
                                                }

                                    }
                                    else if (elem.getTag().equals("c:relevance"))

                                    {
                                                /*
                                                 * Get the relevance value
                                                 */
                                                if (elem.getValue() == null)
                                                {
                                                            err("Failed to parse RDF: RelevanceInfo with invalid relevance");
                                                            return;
                                                }

                                                relevance = Float.parseFloat(elem.getValueNotNull().trim());
                                    }
                        }