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