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