a$. Metal lines from [O]{}[i]{} $\lambda$ 0000, [Fe]{}[ii]{} $\lambda\lambda$ 0000, 0000, [Si]{}[ii]{} $\lambda\lambda\lambda\lambda$ 0000, 0000, 0000, 0000, [C]{}[ii]{} $\lambda$ 0000, [Al]{}[ii]{} $\lambda$ 0000, [