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