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