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