Answer:
1. Find the next value. Enter as equivalent Greek alphabet character (eg 'alpha' for 'α'): θ, λ, ξ, ρ, υ, ψ, ...
Additional information:
alpha beta gamma delta epsilon zeta eta theta iota kappa lambda mu nu xi οmicron pi rho sigma tau upsilon phi chi psi omega α β γ δ ε ζ η θ ι κ λ μ ν ξ ο π ρ σ τ υ φ χ ψ ω
Ans: beta