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