Enter a species  (e.g. Al, Fe): Ag
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: Morse_Shifted_GirifalcoWeizer_1959LowCutoff_Ag__MO_137719994600_004
Enter hexagonal lattice constants 'a' and 'c' (m): 2.897576946921024e-10, 4.732312965437943e-10