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