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