block auto
  abbr alpha α
  abbr beta β
  abbr gamma γ
  abbr Gamma Γ
  abbr delta δ
  abbr Delta Δ
  abbr eps ε
  abbr zeta ζ
  abbr eeta η
  abbr theta θ
  abbr Theta Θ
  abbr iota ι
  abbr kappa κ
  abbr lam λ
  abbr Lam Λ
  abbr mmu μ
  abbr nnu ν
  abbr xi ξ
  abbr pi π
  abbr Pi ∏
  abbr rho ρ
  abbr sigma σ
  abbr Sigma Σ
  abbr tau τ
  abbr upsilon υ
  abbr phi ϕ
  abbr ophi φ
  abbr Phi Φ
  abbr chi χ
  abbr psi ψ
  abbr Psi Ψ
  abbr omega ω
  abbr Omega Ω