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