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