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