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