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