Next, as shown in panels b and c of Fig. , the overlapping of radial distribution functions (RDF or g(r)) indicates that NNIP sufficiently reproduces the local structure predicted by the AIMD simulations and uncovers the oscillating structures at larger distances as well. Additionally, the RDF of the Na + -Cl -pair in panel b exhibits a first maximum position at 2.77 Å and a first minimum position at 4.27 Å, which are close to those reported recently using NNIP training employing a different protocol. This indicates that the presence of a cavity with a radius of 4.0 Å does not significantly affect the average liquid structure in the nearby bulk.