Enter a species  (e.g. Al, Fe): Nb
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: MEAM_LAMMPS_YangQi_2019_Nb__MO_360068930164_002
Enter hexagonal lattice constants 'a' and 'c' (m): 2.978876725514418e-10, 4.864485322775405e-10