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