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