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