The following DataNodes have no identifier: 6
http://classic.wikipathways.org/instance/WP2261_rr123065 http://rdf.wikipathways.org/Pathway/WP2261_rr123065/DataNode/d3f2b (Cell Cycle Progression)
http://classic.wikipathways.org/instance/WP2261_rr123065 http://rdf.wikipathways.org/Pathway/WP2261_rr123065/DataNode/c2333 (Cell Migration)
http://classic.wikipathways.org/instance/WP2261_rr123065 http://rdf.wikipathways.org/Pathway/WP2261_rr123065/DataNode/c6738 (Cell Survival)
http://classic.wikipathways.org/instance/WP2261_rr123065 http://rdf.wikipathways.org/Pathway/WP2261_rr123065/DataNode/e70cd (DNA Repair)
http://classic.wikipathways.org/instance/WP2261_rr123065 http://rdf.wikipathways.org/Pathway/WP2261_rr123065/DataNode/f1994 (G1/S Progression)
http://classic.wikipathways.org/instance/WP2261_rr123065 http://rdf.wikipathways.org/Pathway/WP2261_rr123065/DataNode/b49eb (G2/M Arrest)