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