>-- DN.Mapping.VertexMapping.MassFlowAttribute --> L0.String <R L0.HasProperty
>-- DN.Mapping.VertexMapping.VolFlowAttribute --> L0.String <R L0.HasProperty
>-- DN.Mapping.VertexMapping.VelocityAttribute --> L0.String <R L0.HasProperty
>-- DN.Mapping.VertexMapping.MassFlowAttribute --> L0.String <R L0.HasProperty
>-- DN.Mapping.VertexMapping.VolFlowAttribute --> L0.String <R L0.HasProperty
>-- DN.Mapping.VertexMapping.VelocityAttribute --> L0.String <R L0.HasProperty