developed a GGA-level non-decomposable NAKE functional that mimics the behavior of those non-local functionals . They realized that in non-local KEDFs (see Eq. 14), the non-local part cancels out the Thomas-Fermi contribution in low-density regions (resulting in a GGA-like behavior in these regions), whereas it cancels the von Weizsäcker contribution in high-density regions (resulting in a Thomas-Fermi-like behavior in these regions). In addition, they noted that considering the regions of large inter-subsystem overlap is crucial for accurate NAKE approximations. Based on these observations, they constructed a non-decomposable NAKE approximation that switches between Thomas-Fermi in regions where the electron density is large compared to the inter-subsystem overlap regions and the revAPBE GGA KEDF in regions where the electron density is small compared to the inter-subsystem overlap regions. The resulting (non-decomposable) SMP approximation is shown to achieve excellent accuracy for interaction energies in noncovalent complexes.