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