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