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