The following DataNodes have Unknown @Type: 2
More details at https://www.wikipathways.org/WikiPathwaysCurator/DataNodesTests/unknownTypes
Interactions found that involve Labels: 2
http://classic.wikipathways.org/instance/WP5035_r134596 "Increased, Prostaglandin E2 secretion" with graphId b492e
http://classic.wikipathways.org/instance/WP5035_r134596 "Bradykinin receptor B1 activation" with graphId a3cbc