Enter a species  (e.g. Al, Fe): Si
Enter a hexagonal lattice type (e.g. hcp): hcp
Enter a model name: SW_BalamaneHaliciogluTiller_1992_Si__MO_113686039439_005
Enter hexagonal lattice constants 'a' and 'c' (m): 3.647017578081376e-10, 3.224000189217708e-10