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