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