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