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