Start Level 1 Node: External Procurement RelationshipExternal Procurement RelationshipEnd Level 1 Node: External Procurement Relationship
   Start Level 2 Node: Processing External Procurement RelationshipsProcessing External Procurement RelationshipsEnd Level 2 Node: Processing External Procurement Relationships
   Start Level 2 Node: Mass Maintenance of External Procurement RelationshipsMass Maintenance of External Procurement RelationshipsEnd Level 2 Node: Mass Maintenance of External Procurement Relationships