γ-2, δ-2, γ-0, δ-0, β-6, β-4, γ-6, β-7, α-4, α-0, β-1, β-3, α-8, β-8, γ-5, δ-1, α-5, γ-9, β-9, γ-7, α-2, α-6, α-3, γ-4, β-5, γ-8, α-1, β-0, γ-1, γ-3, β-2, α-7. Is "α-9" in the previous list? 
Provide no explanation, directly answer with only "Yes." or "No."