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