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