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