The following DataNodes have no identifier: 4
http://classic.wikipathways.org/instance/WP1243_rr89985 http://rdf.wikipathways.org/Pathway/WP1243_rr89985/DataNode/c5184 (I-Kappa-B)
http://classic.wikipathways.org/instance/WP1243_rr89985 http://rdf.wikipathways.org/Pathway/WP1243_rr89985/DataNode/f2f59 (I-Kappa-B)
http://classic.wikipathways.org/instance/WP1243_rr89985 http://rdf.wikipathways.org/Pathway/WP1243_rr89985/DataNode/c52e9 (IL8)
http://classic.wikipathways.org/instance/WP1243_rr89985 http://rdf.wikipathways.org/Pathway/WP1243_rr89985/DataNode/fd21c (SFC complex)