+ HasGeneratorID = getResourceOrNull(graph, URIs.HasGeneratorID);\r
+ HasGeneratorID_Inverse = getResourceOrNull(graph, URIs.HasGeneratorID_Inverse);\r
+ HasImportData = getResourceOrNull(graph, URIs.HasImportData);\r
+ HasInputResource = getResourceOrNull(graph, URIs.HasInputResource);\r