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