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