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