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