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