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