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