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