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