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