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