Enter a species (e.g. Al, Fe): W Enter a hexagonal lattice type (e.g. hcp): hcp Enter a model name: Morse_Shifted_GirifalcoWeizer_1959MedCutoff_W__MO_390128289865_004 Enter hexagonal lattice constants 'a' and 'c' (m): 2.81046350790283e-10, 4.586081608404041e-10