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