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