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