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