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