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