Enter a species  (e.g. Al, Fe): Si
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: Tersoff_LAMMPS_Tersoff_1988T2_Si__MO_245095684871_003
Enter hexagonal lattice constants 'a' and 'c' (m): 2.728935803833749e-10, 4.461827702484433e-10