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