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