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