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