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