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