Subscription_Item_Unit_Inverse = getResourceOrNull(graph, URIs.Subscription_Item_Unit_Inverse);
Subscription_Item_VariableId = getResourceOrNull(graph, URIs.Subscription_Item_VariableId);
Subscription_Item_VariableId_Inverse = getResourceOrNull(graph, URIs.Subscription_Item_VariableId_Inverse);
Subscription_Item_Unit_Inverse = getResourceOrNull(graph, URIs.Subscription_Item_Unit_Inverse);
Subscription_Item_VariableId = getResourceOrNull(graph, URIs.Subscription_Item_VariableId);
Subscription_Item_VariableId_Inverse = getResourceOrNull(graph, URIs.Subscription_Item_VariableId_Inverse);