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