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