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