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