The following DataNodes have no identifier: 4
http://classic.wikipathways.org/instance/WP3256_r123266 http://rdf.wikipathways.org/Pathway/WP3256_r123266/DataNode/f08aa (Actin Organization)
http://classic.wikipathways.org/instance/WP3256_r123266 http://rdf.wikipathways.org/Pathway/WP3256_r123266/DataNode/f367a (Autophagy)
http://classic.wikipathways.org/instance/WP3256_r123266 http://rdf.wikipathways.org/Pathway/WP3256_r123266/DataNode/f96db (Cytoskeletal dynamics)
http://classic.wikipathways.org/instance/WP3256_r123266 http://rdf.wikipathways.org/Pathway/WP3256_r123266/DataNode/cf883 (Ribosome biogenesis)
More details at https://www.wikipathways.org/WikiPathwaysCurator/DataNodesTests/dataNodesWithoutIdentifier