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