Guess the missing item from this list: η-0, ζ-7, ε-6, γ-0, α-6, β-7, ζ-5, ε-2, α-7, δ-0, η-3, β-2, β-6, β-9, ε-5, δ-3, α-2, δ-6, ε-8, γ-6, ε-7, α-1, ζ-0, α-9, γ-7, γ-8, β-3, ζ-2, ζ-3, γ-9, γ-5, β-5, ζ-9, β-1, ζ-4, δ-2, ε-9, γ-1, β-0, γ-2, ε-4, ζ-8, α-4, α-5, δ-1, ε-3, δ-4, δ-9, α-8, γ-3, δ-7, ζ-6, ε-1, α-0, η-2, δ-5, ε-0, β-8, δ-8, ζ-1, γ-4, β-4, η-4, η-1.
Directly answer with only one item. Item format should match the list format. Provide no explanation. Answer format: "{item}."