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