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