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