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