The relative permeability models should be moved into the phase
The relative permeability should belong to phase property. Different phases can have different relative permeability models. Phases may have the relative permeability models with the same name but with different the model parameters and model methods.
If the relative permeability tag is moved into the phase tag, the curve for the relative permeability of phase is available.
After relative permeability tag is moved into the phase tag, the phase name in the saturation name can be dropped because the phase info is already included in the phase tag.
In the current implementation, the relative permeability mode is set outside of phase property but provides values per phase, RelPermBrooksCorey.